"Say Aah" is the fourth official single by Trey Songz. It is from the Trey Songz album Ready. It features rapper Fabolous. The music videos for "I Invented Sex" and "Say Aah" were filmed in New York with director Yolande Geralds. The song has since become his most successful single, peaking at #10 on the Billboard Hot 100, becoming his first Top 10 single.
The music video for the song was released along with the video to I Invented Sex. DJ Clue and Wynter Gordon make cameo appearances in the video. The full length video of "Say Aah" was released on January 4, 2010 from Trey Songz official YouTube channel where the song's title is spelled incorrectly on screen as "Say Ahh" in the beginning. There is a remix of the song with Juelz Santana.
The song peaked at #10 on Billboard 100, Trey's highest charting single to date.