Confused for the summer? Taylor Swift and Selena Gomez seemingly had mixed emotions while watching Demi Lovato’s outdoor performance of “Cool for the Summer” at the 2015 MTV Video Music Awards on Sunday, Aug. 30.

Caught on MTV’s audience camera, the two BFFs — watching via monitors from inside the Microsoft Theater — appeared a bit surprised by Lovato’s sex-charged performance of her hit new single on the outdoor Pepsi Stage in downtown L.A. in dominatrix-style knee-high boots and a bedazzled one-piece. Swift, 25, who whispered to Gomez, 23, throughout the performance, watched intently with her mouth agape. Gomez, who is longtime friends with Lovato, 23 —a former child star, just like her — cheered throughout the performance but appeared to lose interest towards the end, when she started texting on her iPhone.

(Despite much excitement and confusion on Twitter, Gomez was not caught texting during ex-boyfriend Justin Bieber’s performance of “What Do You Mean?”)

Lovato, who appeared onstage with neon-clad dancers, ended her performance raised above the crowd in an inflatable pool.

Iggy Azalea’s surprise appearance during Lovato’s moment also caused a frenzy on Twitter. One viewer tweeted out a picture of two trash cans and wrote “loving demi and iggy performance!” while another added, “I love how music can take you to another place. For instance, Demi/Iggy just came on the #VMAs and I got up and went to the kitchen.”

Watch the video above to see Taylor and Selena’s reaction. Sign up now for the Us Weekly newsletter to get breaking celebrity news, hot pics, and more delivered straight to your inbox!