Rihanna does Coachella: performs with Calvin Harris, parties with Leonardo DiCaprio

Rihanna certainly knows how to make the most of a music festival, if this weekend was any indication.

The pop star headed out to the desert for the first weekend of the 2016 Coachella Valley Music and Arts Festival to do some relaxing -- and to sneak in a little work as well.

• Rihanna blown away by talented fan at concert

During Calvin Harris' set on Saturday, Rihanna -- wearing a fringe-enhanced American flag jacket -- made a surprise appearance to perform their hit "We Found Love" to the delight of everyone in attendance, including Harris' girlfriend, Taylor Swift.

• Scenes from Coachella 2016

The performance was caught on video by several fans in attendance.

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Of course, eagle-eyed fans who'd been paying attention the day before would have already known that Rihanna was in attendance at the annual massive music fest, as she was spotted the night before hanging out with Leonardo DiCaprio at the Neon Carnival late-night after-party, donning sunglasses and looking very relaxed late into the night.

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• Leonardo DiCaprio