Since announcing her split with husband Marc Anthony, Jennifer Lopez is handling her single life well. She will be back to work on "American Idol" and she is not letting any personal matter get in the way.

Lopez appears to be in good spirits as she did what she does best which is performing. During her 25-minute set, Lopez seemed energetic by jumping around the stage with her dancers and singing a medley of her hits.

"We've been doing auditions and she's rising above," Lopez's fellow judge Randy Jackson told "People" at Las Vegas's iHeartRadio Music Festival, where both he and Lopez performed.

"She's strong, she's a trooper, she's a great girl. She's amazing," Jackson further added. However, if Lopez ever needs anything, Jackson said that the "Idol" family always has her back. "Whatever help we need to give, we'll give her," he said.

It definitely appears that Lopez is indeed enjoying the single life. The single mother of twins headed over to the Pure nightclub at Caesars Palace in Las Vegas and let loose later that night after performing at the iHeartRadio Music Festival at the MGM Grand. She arrived at the hotspot and spent her time there mingling, drinking champagne and dancing.

"I don't want to see anyone trying to act cool around here. I want to see you dancing and jumping and singing and acting like a fool," Lopez told the crowd.

Hence, she did dance the night away and stay young on the floor.