The 34-year-old "American Idol" host was spotted hanging out with the redheaded starlet on Thursday night and when asked why the two were spending time together, Ryan revealed he is a mentor of sorts for the 22-year-old.
"I'm trying to, you know, give her guidance," Ryan told a cameraman for TMZ. "She wants to sing. She loves to sing. Dude, you know she's a singer. Come on."
Ryan added he is impressed with Lindsay's vocal work.
"She's good," he said before jumping into the back of a black SUV after an evening clubbing with the "Mean Girls" star.
A short while later, cameras captured Lindsay also diving into the back of the same vehicle, though she remained mum on her relationship with the TV host and radio DJ.
According to X17 Online, the SUV took the two to Lindsay's home, where loud music was heard coming from the starlet's abode, prompting a police presence.
At 3:30 AM, after a visit from the police, the two went to Ryan's house, the Web site reported.