Andrew W.K. Has 'Nice Scar' From Ke$ha Tattoo, Plans Josh Groban Collaboration

You have to be a certain kind of person to let Ke$ha tattoo you. Only someone slightly outrageous would offer up their flesh to Nashville's wildest pop star, someone like Andrew W.K., a guy who isn't afraid of taking risks -- or, ending up with a life-long scar.

"It got infected," W.K. tells Spinner. "It's an unfortunate aftermath and my body ended up rejecting the ink and I had to go to the doctor but it actually left a nice scar which was, in fact, cooler than the tattoo."

But the rocker isn't harboring any bad blood about the scar, a simple, straight line "in the exact shape of the tattoo. "I think Ke$ha's a fantastic songwriter," he says. "I get excited about anyone who's working in this celebratory space and I just like her melodies; her song structures are brilliant."

"Who knows," he adds, "if the scar heals a little bit more, I might go back and try again."

Not only is Andrew W.K. considering going back for another tat, he's also hoping to get together with Ke$ha in the studio. She's just one person on his ever-eclectic wish list. Incredibly, adult contemporary singer Josh Groban is on there, too.

"Josh Groban Tweeted me one day with a song that he had written and thought that I would like," says W.K. "We emailed, and he's actually living in New York now, so I'm hoping to meet him in-person soon."

"Again, I see him as someone who is trying to get to this place of musical pleasure and joy, and it's an inspirational and powerful feeling," the rocker, who's currently working on a new record, adds. "He definitely raises people up with his voice."

Two dream collaborations he can already check off his list are with Soulja Boy and recent tour mates Matt and Kim. The group joined up for the Converse-financed song 'I'm a Goner,' one of the shoe brand's oddball match-ups for a recent campaign. But for W.K., this wasn't such a strange pairing.

"I just love anyone who puts that much enthusiasm into what they do," he says.