Taylor Swift Dances to Calvin Harris, Justin Bieber Bares His Abs at Wango Tango Music Festival

Taylor Swift was a dedicated Calvin Harris fangirl last night (best girlfriend ever?) at the 102.7 KIIS FM Wango Tango Music Festival last night as she danced along to his DJ set with BFF’s HAIM (Danielle, Alana and Este).

Swift and Harris, who actually met through the HAIM girls, have been dating since around March when they were spotted cozying up in Nashville.

Now that he’s met her cats, things are seemingly heating up right as she’s beginning to het around the world for her sixth-month long 1989 tour.

She performed the first two shows of her tour in Tokyo, Japan on the 5th and 6th of May. Her next stop is Louisiana on the 20th.

The annual Wango Tango Music Festival, hosted by Ryan Seacrest and KISS FM, also featured performances by Nick Jonas, Justin Bieber, Kanye West (with support from Kris Jenner), Fifth Harmony, Ne-Yo, Sia, Jason Derulo, Meghan Trainor, Natalie La RoseDavid Guetta, a surprise appearance by Big Sean, and many more!

Check out some of Beiber’s performances below as well as several pics posted by the performers on social media!

“As Long as You Love Me” and “Where Are ü Now”:

 

“Hold Tight” and “All That Matters” (acoustic!):

“Boyfriend” and “Beauty and the Beat”:

Sia of course !!!! Backstage right before her show(and mine)

A photo posted by David Guetta (@davidguetta) on

Getting ready to take the stage at @1027KIISFM's #WangoTango! Watch live at KIISFM.com!

A photo posted by @nickjonas on

http://instagram.com/p/2fAtrWwmWh/

Ran into the super talented @torikelly backstage at #WangoTango #NONFICTION2015

A photo posted by NE-YO (@neyo) on

http://instagram.com/p/2gShjPqQXt/

http://instagram.com/p/2fSupwOSmZ/

Check out the gallery above to see the hottest red carpet arrivals and photos of the performances.