1. First and foremost: the raging sexual tension between Derek and Casey on Life With Derek.
2. Logan and James from Zoey 101.
3. Justin Bieber when he'd take his shirt off at concerts.
4. But especially when he ripped his shirt off in the "What Do You Mean" music video.
5. Joe Jonas and his bangs.
6. Teen Wolf's nonstop shirtlessness.
7. The entirety of Spring Breakers.
8. This guy from Liberty's Kids.
9. Any scene in Victorious where we saw Avan Jogia's abs.
10. The Jake-Jesse-Miley love triangle on Hannah Montana.
11. The shirtless part of One Direction's "Kiss You" music video.
12. Angel of Darkness Justin from Wizard of Waverly Place.
13. Mermaid Sara Paxton in Aquamarine.
14. That one shirtless ad Corbin Bleu did for Ocean Pacific.
15. Zuko from Avatar: The Last Airbender.
16. Gen Z's version of Fifty Shades of Grey, aka Twilight.
17. Katy Perry's "I Kissed a Girl" music video.
18. But also her "California Gurls" video.
19. Emily and Maya's whirlwind of a relationship on Pretty Little Liars.
20. The episode of Glee where they sang "Like a Virgin."
21. And Glee's TWO Britney Spears–themed episodes.
22. Christina Aguilera in Burlesque.
23. That steamy hot tub scene in To All the Boys I've Loved Before.
24. And basically everything about Noah Centineo.
25. A grown-up Jake T. Austin on The Fosters.
26. Usher's ~steamy~ "Good Kisser" music video.
27. Ariana Grande's Dangerous Woman era.
28. Shawn Mendes's ab-tastic Calvin Klein ads.
29. And last, but certainly not least: Nick Jonas's "red dress" in the 2008 smash hit "Burnin' Up."
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