Brittany Kerr issued an apology on Tuesday for kissing married country star Jason Aldean at a Los Angeles bar over the weekend.

Kerr, a former American Idol contestant and widely famous NBA cheerleader, issued a statement to TMZ and said she was sorry to the people affected by the incident.

"The actions I portrayed recently were not a representation of my true character, but a lapse in judgment on my part. I would like to sincerely apologize to everyone that has been affected by this, including my friends & family," she said in the statement.

Kerr's apology comes a day after Aldean admitted to cheating on his wife after photos emerged showing him cuddling up and kissing the former dancer.

The pair met at The Den in California and were seen holding one another and whispering into each others ears looking too close for a married father of two. Aldean is married to his high school sweetheart Jessica Ussery, who no doubt will be furious with her husband.

Aldean posted on his Facebook page: "I wanted to talk to you directly, so you were hearing the truth from me and not just reading allegations made about my personal life on gossip web sites.

"The truth is that I screwed up. I had too much to drink, let the party get out of hand and acted inappropriately at a bar. I ultimately ended up embarrassing my family and myself. I'm not perfect, and I'm sorry for disappointing you guys," he wrote.

"I really appreciate being able to work through this privately with my family and for all your continued support."