Jennifer Lawrence and Coldplay frontman Chris Martin were reportedly caught heating things up during iHeartRadio Music Festival 2014.

Just Jared reports the actress was caught dancing along to Martin’s music while in the Las Vegas crowd. It’s the third concert Lawrence has been spotted at, including Coldplay’s performance at the Ace Hotel Theatre in L.A. this past Wednesday.

"She knew every word to every song and there was a glisten in her eye as she watched Chris perform," a source told E! News regarding her appearance at the Ace Hotel Theatre show. "She couldn't take her eyes off him."

The source added, "Jennifer stared adoringly at Chris, both hands in the hair, dancing and singing along to 'Magic.’”

Romance rumors between Lawrence, 24, and Martin, 37, began in August shortly after the actress ended her relationship with “X-Men” co-star Nicholas Hoult.

According to People magazine, Lawrence has been visiting Martin at his Malibu, Calif. home. Martin is separating from his wife Gwyneth Paltrow and is trying to be respectful of their break up.

"Jen has made a few visits to his Malibu house," a source told People. "Chris seems very respectful of Gwyneth and feels more comfortable spending time with Jen away from his family."

Another E! News report claimed the couple is very comfortable around each other and was spotted during with friends at the Chateau Marmont on Sept. 11. Lawrence’s friends were allegedly very “welcoming” regarding her new relationship with Martin.

“They seem very comfortable in each other’s company — and happy!” an insider told E! News. “It doesn’t seem like it’s a new relationship. They seem super affectionate and at ease with each other.”