What R U Waiting 4

"What R U Waiting 4" is a pop-soft rock song written by Matthew Gerrard, Bridgit Benenate, Steve Booker for Australian singer-songwriter Tiffani Wood. The single was Wood's debut solo single and marked a musical change for the singer who was generally known for her pop-dance music with girl group Bardot. The single debuted at No. 27 on the ARIA singles chart and was one of the most-played songs on Australian radio in March 2004. The single was Wood's only release during her brief time with Warner Music as a solo artist, departing her contract to forge an independent music career. The single does not feature on her debut album Bite Your Tongue.

"What R U Waiting 4" was covered by Lindsay Lohan for the Confessions of a Teenage Drama Queen soundtrack under the grammatically correct title of "What Are You Waiting For". The song was also covered on the Bratz: Rock Angelz album as "Change the World" and by Christian pop artist Natalie Grant on her album Awaken.