Zoe Colletti Says Her "Only Murders" Costar Selena Gomez Is Her "All-Time Favorite Person Ever"

In our Q&A series Last Call, we get down to the bottom of every last thing with some of our favorite celebs - from the last time they were starstruck to the last song they listened to. This week, Zoe Colletti takes our call.

Zoe Colletti is definitely having a moment. She's starring opposite Lana Condor in Netflix's "Boo, B*tch," which premiered July 8. Oh, and she joined the cast of Emmys juggernaut "Only Murders in the Building" as Lucy, the almost-stepdaughter of Charles (Steve Martin) who finds herself wrapped up in the Arconia and its mysteries.

"Comedy was like a totally new venture for me and something that I was excited about," Colletti, 20, tells POPSUGAR about joining the two shows. Plus, for "OMITB," there was the chance to work with the amazing cast, including her forever favorite, Selena Gomez. "Getting the opportunity to work with literal legends was pretty amazing."

In "Boo, B*tch," Colletti stars as Gia, the best friend of Condor's Erika. The duo are nerdy high school seniors who mostly slip under the radar of their classmates but finally agree to let loose at a party. Unfortunately, disaster strikes on the way home: Erika is squashed by a moose and dies.

Gia dedicates herself to helping Erika, now a ghost, wrap up her unfinished business so she can cross over and find peace after death. "Gia is such a loyal person, and she's someone that cares so deeply about Erika, about her family, about people she cares about, and she's willing to do anything for them and put them before herself," Colletti explains.

The very complicated friendship between Gia and Erika really animates the show. "We had really, really great chemistry," Colletti says of working with Condor. "I adore her. I can't even think of enough words to say how much I literally love her. So bringing that to life, the really heartfelt part of their friendship, was very, very smooth sailing."

But their relationship in the show hits some major bumps. As the show continues, Erika neglects Gia. They have a horrible friend breakup that leads to a devastating twist (spoiler alert!) - it's actually Gia who's dead, not Erika. "I think a lot of people have experienced having a falling out with a best friend, and it's really sucky," Colletti says. "The aspect of Gia being dead makes that storyline so much more gut-wrenching, not only for Gia, but for the watchers."

"When you realize that she's the one that's dead, it's really difficult, and honestly, Erika continues to be horrible to her even after she already knows," she explains. "That's a part in the story that is really tough, especially because I think people will like their friendship a lot when you start watching the show, and I think it's really sad."

It turns out Gia's unfinished business is going to prom, which is one of the reasons why Colletti connected with the character: she never attended prom either (for a less traumatic reason, of course: she was working). "Getting to go to prom on the show was like my dream come true," she says. "It was probably way cooler than my private-school prom would've been. . . . I was so desperate to go to prom, which I feel like I didn't need to be that desperate about it, but I really was, and so was Gia, and we really connected on that front." Colletti says that she was so bummed to miss her own prom that she asked crew members if they had sons or nephews who could take her to theirs, but she never made it happen.

If "Boo, B*tch" doesn't end with a happy ending for Gia, it does end with closure for Erika and Gia's relationship. "Even though obviously Gia's time was done, they were able to mend things and figure it out in the end," Colletti says. "It's a good message to hold onto your friendships, and even if you have falling outs or get in fights, that you'll be able to work it out and come around and find a solution."

Fans will have to wait longer to find out how Colletti's Lucy influences the events of "Only Murder in the Building" season two, though she made a major splash in her debut in the fourth episode, which was released July 12. Colletti was a fan before she got cast; she and her mom marathoned season one when they were recovering from COVID-19.

Colletti calls her role as Lucy, who was often mentioned in season one, "a very endearing part of a very endearing storyline." Colletti and Martin have great chemistry together, and Colletti couldn't help but gush about joining the ensemble. "Just the cast of that show in general is absurdly amazing, down to every last cameo," she says.

Keep reading to see what else Colletti has to say about meeting Selena Gomez, her favorite TV shows, and more.

When was the last time you were starstruck?

Oh my God, Selena. Selena Gomez. She is my all-time favorite person ever. She was my literal idol in life, and now she is my favorite person in general. I want to say from kindergarten to second grade, my dad had an old car and I went to Justice and I bought a CD of her old album from when she was Selena Gomez & the Scene. It was the only CD I had in the car, and even my dad knows every lyric to every single one of her songs from that album, because it is all I would play at like six in the morning on the way to school when I was 7.

I told her that. I was like, "I literally love you. You're my favorite person ever." I was such a diehard "Wizards of Waverly Place" fan. I'm fangirling right now. I don't get that way ever. I'm usually pretty chill, and I was like, "Oh my God, I love you."

What was the last day on the "Boo, B*tch" set like?

I don't even remember what I was filming on the last day, but I do know that the entire cast had wrapped earlier in the day. And then when I came back to the base camp area where my trailer was, they all waited there for me to get back after I wrapped. It was really cute, and we all took photos, and they were all cheering.

Who was the last "Boo, B*tch" costar you texted?

Lana. I literally texted her today because a seam on my outfit ripped, and I had to hand-sew in the hotel 10 minutes before I got here with the sewing kit I got from the front desk. I was like, "Lana, my outfit ripped. I'm dying." And she's like, "Oh my God, no." But I'm here, it's fine. I figured it out. Apparently I'm a seamstress now. Add it to the résumé.

What was the last song you listened to?

OK, the last song that I listened to was "Pool" by Still Woozy and Remi Wolf. And Remi Wolf, her song is in "Boo, B*tch," and I was really excited about that because I love her.

What is the last photo in your camera roll?

It's a photo of someone's toupée that fell off. I was in the airport and there was a toupée on the floor, so I took a photo of it, because I thought it was funny.

What was the last show you binge-watched?

Actually, my guilty pleasure is Korean dramas, especially the ones that are on Netflix, and I was just watching the show "Twenty-Five Twenty-One," which is like a Netflix K-drama, and it's so good.

What was the last piece of advice you received that changed your life?

I think the best piece of advice that I've received lately would probably just be to just take care of myself, that mental health is super important. We love self-care.