Question: What star of "Fat Albert" is known for his role in Saturday Night Live's sketch, "What Up With That?"

<P0-S0> Fat Albert is a 2004 American live-action/animated fantasy romantic comedy film based on the Filmation animated series of the same name created by Bill Cosby. <P0-S1>  The film was produced by Davis Entertainment for 20th Century Fox, and stars Kenan Thompson as the title character alongside Cosby himself in a key supporting role. <P0-S2>  Unlike films that meld the cartoon world with the real world while at the same time keeping the cartoon characters two-dimensional (e.g., "Who Framed Roger Rabbit", "Space Jam", ""), "Fat Albert" takes a twist and transforms the cartoon characters into three-dimensional humans, who have to come to grips with the differences that exist between their world and the real world. <P0-S3>  The film acts as a continuation of the series; its plot surrounds Fat Albert and the gang leaving their 1970s cartoon world and entering the 21st century real world in order to help a teenage girl, Doris Robertson (Kyla Pratt), deal with the challenges of being unpopular, and not having any friends aside from her foster sister, Lauri. <P0-S4>  Doris has withdrawn and fallen into depression after the death of her grandfather, Albert Robertson (who was a friend of Cosby and the real-life inspiration for the Fat Albert character). <P0-S5>  Fat Albert and the gang must show her that she is special and that she can make friends. <P0-S6>  But if Fat Albert and his friends stay in the real world, they will turn to celluloid dust, and it is up to Cosby to help them get them back into the cartoon world. <SEP> <P1-S0> "What Up with That?" <P1-S1>  is a recurring sketch on the NBC television series "Saturday Night Live" which first aired in 2009. <P1-S2>  It stars Kenan Thompson as Diondre Cole, host of a talk show on BET. <P1-S3>  Supporting characters include Taran Killam as the show's announcer (originally Will Forte), Sasheer Zamata (originally Jenny Slate, later Vanessa Bayer) and Cecily Strong (originally Nasim Pedrad) as backup singers/dancers Pippa and Piper, respectively, Fred Armisen as Giuseppe, a Kenny G-like saxophone player, and Jason Sudeikis as Vance, an overzealous backup dancer. <P1-S4>  The sketch has incorporated unannounced cameo appearances by a number of celebrities. <P1-S5>  In addition to this, cast members frequently play roles adding to the chaos during Cole's performances, such as Paul Brittain and Abby Elliott's dancing performances as Vili Fualaau and Mary Kay Letourneau, a student and teacher who made news for their sexual relationship. <SEP> <P2-S0> Kenan Thompson ( born May 10, 1978) is an American actor and comedian. <P2-S1>  He is known for his work as a cast member of NBC's "Saturday Night Live". <P2-S2>  In his teenage years, he was an original cast member of Nickelodeon's sketch comedy series "All That." <P2-S3>  Thompson is also known for his roles as Kenan Rockmore in the sitcom "Kenan & Kel", Russ Tyler in "The Mighty Ducks" franchise, Dexter Reed in the film "Good Burger", and "Fat Albert" as the title character. <P2-S4>  In his early career, he often collaborated with fellow comedian and "All That" cast member Kel Mitchell. <P2-S5>  He is ranked at #88 on VH1's 100 Greatest Teen Stars. <SEP> <P3-S0> A Night at the Roxbury is a 1998 American comedy film based on a recurring skit on television's long-running "Saturday Night Live" called "The Roxbury Guys". <P3-S1>  "Saturday Night Live" regulars Will Ferrell, Chris Kattan, Molly Shannon, Mark McKinney and Colin Quinn star. <P3-S2>  This film expands on the original Saturday Night Live sketches where the Roxbury Guys were joined by that week's host, and bobbed their heads to Haddaway's hit song "What Is Love" while being comically rejected by women at various clubs.