In the second-season opener, the guys turn against each other and quit after they are unable to land gigs. Dina, Neil and Joan Rivers conspire to get them back together. Guest stars include Dee Snider, Greg Giraldo and Melissa Rivers.
The guys get back on track professionally, so they turn their focus to another favorite pastime: women. Bonnie Bernstein and Bethenny Frankel guest star.
The guys score a gig doing a party for the adopted child of a lesbian couple. Things appear to be improving for them when Dina lands them a shot opening up for KISS, except this amalgamation doesn't measure up to the big-time rock-and-roll group they remember. MiniKiss guest star.
Neil invites himself along on the band's road trip to his Westchester hometown, where they are scheduled to open for Bret Michaels. He uses the opportunity to avenge past slights from an old classmate, the local priest and Regis Philbin.
The guys experiment with a new sound for the band and get a visit from rocker Dave Navarro, who once nearly ruined their career and now wants to audition for them. Meanwhile, Dina encounters an old flame: Daryl Hall, of Hall and Oates fame.
It's a fantasy come true when the guys get to play a children's party with a wrestling theme, and they get to dress up in full regalia, but a few poorly chosen words by Joey lands them in trouble with legendary grappler Chris Jericho. Jim Norton, Jeff Ross.
A Battle of the Bands competition is in jeopardy when Joey injures a knee, paving the way for Steel Panther, Z02's bitter rivals, to cop the $15,000 first prize. To make matters worse, David's old flame turns up ready to give birth, plus she's got her new beau in tow, an insanely jealous ex-NFL star (Warren Sapp). Julissa Bermudez, Eddie Trunk.
A Brooklyn politician hires Z02 to perform at a rally, but the guys second guess their decision when they discover that some organized-crime figures are involved. Patrice O'Neal, Kurt Metzger.
A rehabilitated John Popper, who once almost burst the bubble on the band's dreams of stardom, pops back into the picture to make amends, help Paulie land an audition for a Broadway musical and rekindle his romance with Dina. Joan Rivers, Marky Ramone.
In the Season 2 finale, the band lands a plum gig performing at the Bar Mitzvah for a superstar rapper, and as luck would have it, the event is being filmed for the pilot episode of a reality series about wild and crazy Bar Mitzvahs. Howard Stern sidekick Gary Dell'Abate, singer John Popper and Joan Rivers have cameos.