Justin Bieber & Selena Gomez Are Smokin' Up the Dance Floor - Watch Now!

Check out Justin Bieber going shirtless sexy while heating up the dance floor with Selena Gomez in two new videos posted on his Instagram!

In case you missed it, the 20-year-old singer dedicated a song to Selena while performing at the Scooter Braun Projects Sunday Funday Showcase during the 2014 SXSW Music, Film + Interactive Festival.

PHOTOS: Check out the latest pics of Justin Bieber

“Love how some people love to twist and justify the horrible action of others. We all have a right to defend ourselves and feel harassed,” Justin recently tweeted after his deposition videos were released publicly.

FYI: Selena is wearing A Fine Line Clothing sweatpants.

WHAT DO YOU THINK of the undeniable chemistry between Justin Bieber and Selena Gomez?

Click inside for the second video of Justin Bieber and Selena Gomez dancing…