Question: What episode of CW's American teen drama where Kristen Bell voiced the blogger featured Flo Rida's second single?

Context paragraphs:
My House (EP): My House is the fourth extended play by American rapper Flo Rida; it was released on April 7, 2015, by Poe Boy Entertainment and Atlantic Records.  It is Flo Rida's first release to feature original material since "Wild Ones" (2012).  "My House" precedes the release of Flo Rida's fifth studio album, "The Perfect 10".

Sugar (Flo Rida song): "Sugar" is a song by American rapper Flo Rida, featuring American pop/dance singer Wynter Gordon.  The song's chorus samples the song "Blue (Da Ba Dee)" by Italian electronic music group Eiffel 65.  The song was written by Flo Rida, The Jackie Boyz, Jeffrey Jey, Maurizio Lobina, and Massimo Gabutti, and was produced by DJ Montay for Flo Rida's second album, "R.O.O.T.S.".  The song was released as the album's third official single in March 2009 as a digital download.

Who Dat Girl: "Who Dat Girl" is a song by American rapper Flo Rida.  It features American singer Akon.  The song was written by Flo Rida, Dr. Luke, Claude Kelly, Benny Blanco, Bruno Mars, and Philip Lawrence, and it was produced by Dr. Luke and Benny Blanco.  It was released on January 11, 2011 as the third single from Flo Rida's third studio album, "Only One Flo (Part 1)".  It peaked at number twenty-nine on the "Billboard" Hot 100.

Change Your Life (Far East Movement song): "Change Your Life" is a song by American group Far East Movement from their fourth studio album "Dirty Bass".  It features American rapper and singer-songwriter Flo Rida and Dutch DJ Sidney Samson.  The song was released in Belgium on October 26, 2012 as the album's fourth single.  The song was written by Far East Movement, Flo Rida, Sidney Samson, Nathan Walker, Breyan Isaac, Antonio Mobley, and produced by Sidney Samson.  Flo Rida's verse borrows lyrics from the 1989 Lisa Stansfield hit "All Around the World", which was written by Stansfield and producers Ian Devaney and Andy Morris.  It has peaked to number 91 in Germany.

Sweet Spot (song): "Sweet Spot" is a song recorded by American rapper Flo Rida for his fourth studio album "Wild Ones" (2012).  It features guest vocals from American singer Jennifer Lopez.  The song was written by Flo Rida, Raphael Judrin, Pierre-Antoine Melki, Breyan Issac and Julie Frost.  "Sweet Spot" was produced by SoFly and Nius; Jacob Luttrell produced Flo Rida's vocals for the song, while Kuk Harrell produced Lopez's.

Higher (The Saturdays song): "Higher" is a song performed by British-Irish girl group The Saturdays taken from their debut extended play, "Headlines! ".  Written by Ina Wroldsen and co-written & produced by Arnthor Birgisson, the song confirmed to be the EP's second single when it was released on 1 November 2010 by Fascination Records.  In preparation for its release, the single was remixed to feature new vocals from American rapper Flo Rida after the rapper's single "Club Can't Handle Me" beat the group's previous single "Missing You" to number one; it was the second time they had lost the position to Flo Rida.  Rochelle Wiseman jokingly said that the group would never get a number one until they collaborated with him.

G.D.F.R. (song): "G.D.F.R." (abbreviation for Goin' Down for Real) is a song by American rappers Flo Rida and Sage the Gemini from Flo Rida's 2015 EP "My House".  It was released as the album's lead single on August 21, 2014 in the United States.  The song was written by Flo Rida, Sage the Gemini and P-Lo and produced by DJ Frank E and Andrew Cedar, with co-production from Lookas and Miles Beard.

Turn Around (5, 4, 3, 2, 1): "Turn Around (5, 4, 3, 2, 1)" is a song by American rapper Flo Rida from his third studio album, "Only One Flo (Part 1)".  It was released as the second single on 8 November 2010 in the United States.  The song contains samples of "Din Daa Daa" by German dance singer George Kranz, and "Oh Yeah" by Swiss electronica band Yello.  It debuted at number 98 on the "Billboard" Hot 100 and was featured prominently in the closing credits of "The Hangover Part II".  It was the second such use of a Flo Rida song in the closing credits of a film from "The Hangover" franchise—the first was "Right Round", which also featured DJ Frank E and was used in the closing credits of "The Hangover".

Elevator (Flo Rida song): "Elevator" is Flo Rida's overall second single (after "Low", which was from the soundtrack of the 2008 movie ""), and the first single from Flo Rida's debut album "Mail on Sunday".  It was produced by Timbaland, who also features on the track.  The piano intro features a melody based on the "Halloween" theme by John Carpenter and the second verse imitates the chorus of "The Donque Song" by will.i.am featuring Snoop Dogg.  The song features Timbaland's signature percussion and vocals, as well as former Beatclub recording artist Kiley Dean on the background vocals.  The song is similar in structure, key, and rhythm to the Timbaland-produced "4 Minutes" by Madonna featuring Justin Timberlake and Timbaland.  The song was featured in the plot for the episode "Desperately Seeking Serena" of teen drama "Gossip Girl".

Gossip Girl: Gossip Girl is an American teen drama television series based on the book series of the same name written by Cecily von Ziegesar.  The series, created by Josh Schwartz and Stephanie Savage, originally ran on The CW for six seasons from September 19, 2007, to December 17, 2012.  Narrated by the omniscient blogger "Gossip Girl", voiced by Kristen Bell, the series revolves around the fictional lives of upper-class adolescents living in Manhattan's Upper East Side.

Supporting paragraphs: Elevator (Flo Rida song) Gossip Girl
Answer: "Desperately Seeking Serena"