Demi Lovato is in high demand!
The 20-year-old "Skyscraper" singer enjoyed a dinner date Sunday in Los Angeles with her 32-year-old ex-boyfriend Wilmer Valderrama -- but just last week, the X Factor judge was dining out with a different man!
Lovato and One Direction's Niall Horan, 18, grabbed a bite to eat together on Sept. 6 after the 2012 MTV Video Music Awards in Los Angeles. The twosome headed to Pink Taco after the show after both winning Moonman awards. While fans have speculated a romance between the two stars for months, Lovato has continued to shoot them down.
"There is nothing going on. Niall's my friend," she told E! News Tuesday. And the singer went on to say, "I'm just focusing on my work right now, and that's pretty much that."
Lovato and her former flame Valderama, however, were photographed at El Torito in Sherman Oaks. The That '70s Show actor dated Lovato in 2010 and the twosome remained friends. They reunited after Lovato was released from a treatment facility (where she was treated for an eating disorder and cutting) in January 2011.
"We were really just best friends, and to be honest I couldn't be more proud of her," Valderrama told Perez Hilton in March. "She's a great human being. I was very proud to be there for her when she needed me and she was there for me a number of times too."
This article originally appeared on Usmagazine.com: Demi Lovato Denies Dating One Direction's Niall Horan; Goes on Date With Wilmer Valderrama