Asian F

"Asian F" is the third episode of the third season of the American musical television series Glee, and the forty-seventh overall. Written by series co-creator Ian Brennan and directed by Alfonso Gomez-Rejon, it first aired on Fox in the United States on October 4, 2011. The episode features the introduction of Emma Pillsbury's (Jayma Mays) and Mike Chang's (Harry Shum Jr.) parents, and the final auditions for the McKinley High production of West Side Story, in which the competition between Mercedes Jones (Amber Riley) and Rachel Berry (Lea Michele) leads the former to quit New Directions.

An advance copy of the episode was released to several reviewers, and received a highly enthusiastic response. Once the episode aired many others were equally impressed, though not all. Brittany's (Heather Morris) "Run the World (Girls)" performance was hailed, and the entire Mike Chang storyline, especially his rendition of "Cool" and his initial solo dance sequence, also received favorable notice. The musical numbers were generally greeted positively, among them the three that featured Mercedes, particularly "It's All Over". However, her storyline had its detractors, mostly due to the recurrence of the Mercedes versus Rachel plot, and the inconsistency of her characterization with past appearances.

All six songs were released as singles, available for download, and two, "Fix You" and "Run the World (Girls)", charted on the Billboard Hot 100, and "Fix You" also charted on the Canadian Hot 100. Upon its initial airing, this episode was viewed by 8.42 million American viewers and garnered a 3.6/10 Nielsen rating/share in the 18–49 demographic. The total viewership and ratings for this episode were down slightly from the previous episode, "I Am Unicorn".