Emma Roberts attends the Coachella Festival Credit: Wennchella/WENN.com

When at Coachella...

For the second weekend in a row Emma Roberts was spotted at the Indio, Calif. music festival. Only this time the actress opted for an extremely revealing look.

Clad in a black and white bandeu bikini top, black bottoms and a mesh minidress, the Valentine's Day star mingled with friends while trying to stay cool in the heat. She paired the sexy outfit with pink socks and white Converse sneakers.

Roberts joined on-again beau Chord Overstreet at Coachella last weekend. The duo, who recently got back together after a three-month split, were all smiles during A|X Armani Exchange and T-Mobile's third annual Neon Carnival in Thermal, Calif. Saturday. Roberts, 21, tweeted that she was "having so much fun" while hanging out with her Glee boyfriend, 23.

Earlier that day, Overstreet was spotted carrying his girlfriend around in his arms throughout the festival grounds; they watched Justice perform the following night.