Demi Lovato Teases More U.S. Tour Dates During Surprise Appearance on 'American Idol' (Video)

Demi Lovato makes her way on to the stage during American Idol on Wednesday night (April 16) in Los Angeles.

The 21-year-old singer, who is friends with both Ryan Seacrest and her X Factor pal Simon Cowell, stopped by to say hi and talk about her tour.

PHOTOS: Check out the latest pics of Demi Lovato

“I just finished the American leg of the Neon Lights Tour, which was amazing,” Demi told Ryan. “I’m about the head out for the South American leg of the tour.”

When asked about rumors that she was adding more U.S. tour dates, Demi smiled and said, “I don’t know…” We can only hope!!!