Check out a first look of the new episode of THE SIMPSONS "Stealing First Base" Season 21 Episode 15 airing Sunday March 21 (8:00-8:30 PM ET/PT) on FOX.
Episode Synopsis: Principal Skinner announces that Mrs. Krabappel was called out of town and budget cuts dictate that, until she returns, the school's two fourth grade classes will merge. Bart reluctantly shares a desk with Nikki (guest voice Silverman) and develops a flirtatious rapport. Bart talks to Grampa about his new crush, and at Grampa's suggestion, gives Nikki a kiss. But when Nikki starts sending Bart mixed signals, he swears off women forever. Meanwhile, Lisa's classmates ostracize her for being an overachiever, and First Lady Michelle Obama (guest voice Bassett), a self-professed nerd, comes to Lisa's defense in the all-new "Stealing First Base" episode ofTHE SIMPSONS airing Sunday, March 21 (8:00-8:30 PM ET/PT) on FOX.