Demi Lovato is reportedly dating UFC fighter Luke Rockhold.

The 24-year-old singer first met 31-year-old Luke while training alongside him at the Unbreakable gym in Los Angeles. According to TMZ.com, their friendship blossomed into a romance two months ago and things are going well for the new couple.

While Demi and Luke have yet to go public with their romance, they are said to have been sending each other secret coded messages on social media, including images with smiley faces on their fingers.

News of Demi's reported romance comes after she was linked to football player Odell Beckham, Jr. when the pair was seen enjoying dinner together at restaurant Hunt & Fish Club in New York's Midtown last month (Jul16).

"Odell came in around 11pm alone, then Demi discreetly arrived about 10 minutes later," a source told the New York Post's gossip column Page Six. "They sat in a corner booth, and it definitely looked like a date. They looked very friendly and stayed until around 1.30am."

Heart Attack singer Demi appears to be enjoying single life since splitting from actor Wilmer Valderrama in June (16) after an on-off six-year relationship.

Following the break-up, Demi admitted in an interview that she loved her newfound freedom.

"I feel really amazing," she told radio host Elvis Duran. "I feel really great and I'm growing. My life is just really, really exciting for me because I'm growing. It's new and fresh, and I feel free."