Publications
The Skyscraper hitmaker has been keeping quiet about the budding romance in recent weeks, but she went public with Luke on Sunday, when they were photographed attending a National Football League (NFL) game between the Los Angeles Rams and the visiting Carolina Panthers.
Demi has still yet to comment on the new relationship, but in a snap obtained by TMZ.com, she and Luke appeared to be happy to pose for pictures together at the game, which the Panthers won 13-10.
Read more: Demi Lovato: Wilmer knows how to handle me
The 24-year-old singer was first linked to 32-year-old Luke in August, amid reports suggesting they had hit it off while training together at the Unbreakable Mixed Martial Arts gym in Los Angeles.
Demi had not been single for long after ending her six-year on/off relationship with actor Wilmer Valderrama in June.
Following the break-up, the pop star admitted she was loving her newfound freedom.
Read more: Nick Jonas: ‘Demi Lovato’s split came at the best time’
"I feel really amazing," she told U.S. 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."
And Rockhold isn't the only man Demi has been linked to since breaking up with Valderrama. Last month, she was reportedly spotted getting cosy with rocker John Mayer at West Hollywood club Catch L.A.
Read more: Are John Mayer and Demi Lovato DATING?
"John had his arm around Demi," an eyewitness told Us Weekly. "She was into it. They weren't making out or anything, but she was giggling the whole time."
The couple chatted for over an hour and Mayer was overheard telling friends he thinks Demi has "one of the greatest voices".
In a Twitter exchange seven years ago, Lovato shared similar sentiments about Mayer, telling fans he was her "inspiration" and "idol".
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