When Melissa McCarthy took the stage to host Saturday Night Live, she started out by issuing a warning to her children: Go to bed now — because mama's about to get pretty inappropriate. She explained, "They're just getting over that sink scene from Bridesmaids. We've been dealing with some night terrors."McCarthy was so excited about her hosting gig, she felt obliged to express herself through dance. Joined by Bridesmaids co-star Kristen Wiig, the duo performed a number showcasing their hilariously cheesy dancing ability:Every little girl wants a Lil' Poundcake doll — she smells like frosting! She has a purse and hair that grows! But Lil' Poundcake's best feature? She administers HPV shots!Arlene (McCarthy) takes the interoffice romance to a new level -- her unabashed sexual advances make her colleague, Tim (Jason Sudeikis), extremely uncomfortable.Ever wonder what it would be like to see Chris Rock interpret Broadway classics like Annie? "It's a hard-knock life? Whatchyou know about the hard-knock life? I'll tell you one thing, though — she's got some daddy issues. Gotta keep her off the pole ..."A focus group for Hidden Valley Ranch Dressing goes awry when one of the participants (McCarthy) becomes a bit too enthusiastic about the product.