Teddy Geiger had quite the rock-star moment recently.

While filming his "These Walls" video in late July, the singer/songwriter got a last-minute invitation to appear on "America's Got Talent." Since he was shooting outside of Los Angeles, a helicopter was sent to pick him up.

"It was my first helicopter ride, second video shoot," Geiger recalled fondly. "Times like that, you definitely say, 'What am I doing here?' "

Perhaps another one of those times was his 18th birthday a couple of weeks ago, when Geiger celebrated by debuting the "Walls" video on "TRL."

"We shot it in a desert area," Geiger said of the Marc Webb-directed clip, which has been a staple on the countdown ever since. "It was nice and pretty but a couple of very hot days."

"These Walls" is the follow-up to Geiger's breakthrough single, "For You I Will (Confidence)," and the second single from his debut, Underage Thinking (see [article id="1528423"]"Teddy Geiger Swings From 'Monkey' To Letterman To Levi's Ad"[/article]).

Geiger said he's re-releasing the album October 10 with demos he wrote before he was signed, including one he penned when he was just 10 years old called "Amazingly Fat Cows." "It's a hidden track, though, so you'll have to search," he said.

In the meantime, Geiger has launched a fall tour with Holly Brook and Alexa Ray Joel sponsored in part by Seventeen magazine, which just made Geiger the first guy to grace its cover in five years. (That cover also doubles as a backstage pass throughout the tour.)

"This was my first kind-of big cover deal, so there was a lot of stuff I still felt awkward about," the singer said.

While on the road, Geiger will work out some ideas for his next album.

"I have a little portable studio set up," he said. "I've demoed maybe 40 songs since the last album came out, and I have just kind of been going at it on the road. I definitely want to get on [the second album] soon, but the more time in between, the more material I'll have."

Teddy Geiger tour dates, according to Columbia Records:

• 9/27 - Boise, ID @ Big Easy