CBS Upfronts 2012CBS today brought back its traditional opening taped comedy video that spills onto the stage of Carnegie Hall. This time it was built around the network’s freshman hit 2 Broke Girls, whose leads Max (Kat Dennings) and Caroline (Beth Behrs) read about ad buyers with a lot of money coming to Carnegie Hall for CBS’ upfront and decide to go there to try and sell the rich “men in suits” some cupcakes. After a cameo by David Letterman and Regis Philbin as customers at the diner, the two girls, boxes of cupcakes in hand, dash to Carnegie and walk up the stage where they are greeted by CBS’ head of sales Jo Ann Ross in a glitzy version of the duo’s waitress uniforms.

Next off, a hip-hopera duet between soprano Danielle de Niese singing the toast from La Traviata and LL Cool J rapping about CBS’ ratings success. LL Cool J goes on to introduce CBS Corp CEO Les Moonves as “the mack daddy behind the CBS phenomenon.” Replied Moonves, “Mad respect to my main man, LL Cool J.”

Related: CBS’ 2012-13 Schedule: ‘Two & Half Men’ Moves To Thursday, ‘Mentalist’ To Sunday

As usual, Moonves talked up CBS’ ratings strength. “CBS has been the most-watched network for 23 years. Mark Zuckerberg was 5.”

CBS has the Super Bowl next year, so the network brought out the star of the this year’s, Eli Manning, trophy in hand, who stayed in the tone of his Saturday Night Live hosting gig, cracking jokes.

The two stars of another CBS Monday comedy series, Mike & Molly‘s Melissa McCarthy and Billy Gardell, come out to talk about their show, on which their characters just got married. “We are hopeful there will be a lot of kids and years of years of syndication,” McCarthy quipped.

Related: CBS First Look Teasers: 2012-13 New Shows

CBS is going a little unorthodox with the rollout of its fall lineup. Instead of going night by night, CBS entertainment president Nina Tassler is going by genre, starting with drama. Along with the network’s returning drama series, showcased are two of the network’s three new fall dramas, the Sherlock Holmes reboot Elementary and legal drama Made In Jersey starring British newcomer Janet Montgomery in a potentially breakout role. Tassler then jumped to comedy, with its returning half-hours and new comedy Partners, before closing out with period drama Vegas starring Dennis Quaid and Michael Chiklis. All were well received, with Partners getting the biggest applause.

Tassler then moves to the schedule and addresses 2 Broke Girls’ move from 8:30 PM to 9 PM: “These waitresses just got promoted to a better night shift.” After a breezy walk through the schedule, CBS’ presentation ends.