Fans of all ages began lining up Friday at 7 p.m. outside the general admission venue at Boston's Paradise Rock Club, striving to get closer to Chicago-based indie-rockers OK Go. The show was the band's fifth stop on its current 34-city North American tour.Just off the heels of a sold-out tour across the United Kingdom, the band-composed of lead singer and guitarist Damian Kulash, bassist Tim Nordwind, drummer Dan Konopka and guitarist and keyboardist Andy Ross-came on stage to such thunderous applause that it was surprising anyone in the audience could hear the rest of the show.

Dressed in clothes better suited to 1970s wallpaper, the band performed songs from both of their tremendously popular albums. After OK Go's critically acclaimed and commercially successful debut album in 2002, the band toured incessantly, waiting an unusually lengthy three years to release their second record, Oh No, in 2005. Their sophomore effort was met with even greater praise than their first; a rare feat for any band.

"You have 20 years to write your first record and only six months to do the next one," Kulash said before the show. "So people often just completely fold under the pressure. I'm much more proud of our second record than our first, so I'm happy to hear that people are responding to it well. We sort of cheated in that there were almost three years in between both records."

Although the quartet has released two albums on Capitol Records, they have managed to develop something of an underground and incredibly dedicated fan base, one that sang along with nearly every word during the band's hour-long set. The group's immense energy extended far beyond the edge of the crowded stage, and at some points in the show, the band members did as well. In the middle of one song, Kulash, with a microphone in hand, left the stage entirely and sauntered into the middle of the sweaty, bouncing crowd, which instantly parted to let the singer walk through.

The audience was particularly excited to hear the band's most successful single to date, "Get Over It," a cynical "deal-with-your-own-problems-and-move-on" anthem.

Since the release of Oh No, OK Go has become a bona fide underground and online sensation, thanks in large part to the music video they filmed to accompany the release of the single "A Million Ways." Filmed in Kulash's backyard with only a digital video camera on a tripod, the grainy video features all four band members, dressed in their trademark suits, performing an elaborate dance routine while drummer Tim Nordwind lip-syncs to Kulash's vocals. By late last year, the video had become the most downloaded music video ever, reaching more than 3 million downloads.

After finishing their set Friday night, OK Go were drawn back onstage by deafening cheers and applause. The group appeased the audience by re-enacting the choreographed dance routine to a recorded version of "A Million Ways."

Kulash is as knowledgeable about politics as he is music. In the lead up to the 2004 presidential election, he wrote an online guide called "How Your Band Can Fire Bush," directed towards other bands hoping to help unseat President George W. Bush. The project met mixed reaction, as some of those who did not necessarily agree with Kulash's political orientation sent him mountains of hate mail.

"We are not an overtly political band," he said. "I don't write songs about tax codes." But, he added, "I wanted to write something to sort of help inspire people to be a little more open with [politics] at a time when it mattered."

"The bands that I respect are the ones that have lasted the longest," Kulash responded when asked what groups he most admires. "Any band that can keep being a band is [lucky] because the music industry is [in bad shape] and [is only getting] worse. We hope and pray that we still get to play rock shows in five years and that people still show up.