"In The Ayer" is the third single from rapper Flo Rida's debut album Mail on Sunday. It was produced by and features will.i.am. Tiffany Villarreal performs the background vocals, but she is uncredited (credited as Fergie in other countries). The song's backdrop and beat are sampled from Pretty Tony's freestyle classic "Jam the Box", which is not credited. The song has been certified platinum by the RIAA, making it his second song to do so.

The song was recorded by Pardraic Kerin and mixed by Dylan "3-D" Dresdow.

The official remix features Rick Ross, Brisco and Billy Blue with original chorus by will.i.am and new Flo Rida verses.

From 2009-2012, this was the victory song for the Baltimore Orioles at home.

A year before the song was released, will.i.am was at Los Angeles's KIIS FM (102.7) doing a freestyle for Jojo Wright over the instrumental of "Easy" by Paula DeAnda. He described the freestyle as a "hot hook". The beat production was done by Timbaland with the help of DJ Tweak from Lakeland, FL.

The video premiered on FNMTV on Friday June 13, 2008. A clip of video was showcased by Pete Wentz of Fall Out Boy in an MTV commercial announcing their new music video blocks. Video appearances made are Rick Ross and Brisco.

In the U.S., "In the Ayer" debuted at #38 on the Billboard Hot 100. The song would eventually become Flo Rida's third top twenty and second top ten hit on the Billboard Hot 100, peaking at #9. It has also been a hit on pop, reaching #14 on the Pop 100, and #12 on Mainstream Top 40 radio. It has also reached #9 so far on the New Zealand RIANZ chart, making it Flo Rida's third consecutive top ten hit there. It recently debuted at #23 on the Australian ARIA charts and later peaking at number 19. On the Canadian Hot 100 it has so far peaked at #13, giving Flo Rida his third top twenty there.

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