Don't Make Me Over Family Guy : Season 4 Episode 4

When Meg gets turned down for a date, she asks her family for support. Lois ends up taking her to the mall, where she gets the ultimate makeover. Meanwhile, Peter tries to start a band with the guys, but when their first gig fails, the family ends up performing. Impressed by Meg's singing, a record producer signs the family, and their travels eventually land them on "Saturday Night Live."