his presentation boards by drawing and writing on them. While hosting dinner with former girlfriend Claire, Dave struggles to hide the Chipmunks after Alvin attempts to create a romantic atmosphere, making Claire uncomfortable and causing her to leave. To make it up to him, the Chipmunks go to Ian's lavish mansion, where they sing Dave's song to him, prompting Ian to sign a record deal. The Chipmunks quickly become an international success. When Dave, concerned for their well-being, insists that the Chipmunks are too young to handle fame, Ian convinces them that Dave is holding them back. After a misunderstanding, the Chipmunks choose to live with Ian, whose only interest is profiting off the Chipmunks’ success as they set off on a nationwide coast-to-coast tour, where Ian exploits their naïveté by overworking them constantly. When Ian's plan is revealed on the news, Dave decides to infiltrate their concert at the Orpheum Theatre to take them back. Before their tour can begin, a veterinarian explains to Ian that the Chipmunks' voices have been worn out due to exhaustion and suggests that they take a long rest, but Ian, unwilling to issue refunds, advises the Chipmunks to lip-sync. Dave sneaks into the concert with help from Claire; the Chipmunks hear Dave calling and realizing that Ian has tricked them, they decide to sabotage the show by causing chaos onstage. Dave is stopped by security, and Ian catches the Chipmunks, locks them in a cage, and prepares to take them on their world tour. Dave tries to convince Ian to let the Chipmunks go by saying they need a real life but Ian refuses. He then escapes in his limousine with Dave in pursuit. When he loses Ian, the Chipmunks unexpectedly show up in his car. As Dave and the Chipmunks reconcile, Ian uncovers the escape, which costs him both his career and his fortune. Cast Live-action cast Jason Lee as David "Dave" Seville, a struggling songwriter and father figure to Alvin, Simon and Theodore David Cross as Ian Hawke, the CEO of JETT Records Cameron Richardson as Claire Wilson, a photographer and Dave's ex-girlfriend Jane Lynch as Gail, an advertising executive and Dave's former boss Voice cast Justin Long as Alvin Matthew Gray Gubler as Simon Jesse McCartney as Theodore Additionally, Kevin Symons appears as Ted, Frank Maharajh appears as Barry, and Veronica Alicino appears as Amy, Dave's three former coworkers. Production