Ellie Goulding & Calvin Harris Live It Up at the Bacardi Triangle!

Ellie Goulding shows off her bare midriff as she hits the stage during the Bacardi Triangle Concert on Saturday (November 1) in Palomino Island, Puerto Rico.

The 27-year-old singer was joined at the private event by Kendrick Lamar and her frequent collaborator Calvin Harris, who both served as performers for the evening as well.

PHOTOS: Check out the latest pics of Ellie Goulding

Calvin, 30, just released his fourth studio album Motion this week, which includes “Outside” featuring Ellie, the Big Sean-assisted “Open Wide,” and his new collaboration with Gwen Stefani, “Together” – Buy the album on iTunes now!

“‘Outside’ video in a couple of days! cc @elliegoulding #Motion,” Calvin tweeted.

FYI: Ellie is wearing Alexander Wang X H&M shorts.

15+ pictures inside of Ellie Goulding, Calvin Harris at the Bacardi Triangle Concert…