"What You Waiting For?" is a song by Gwen Stefani. The lyrics express her fears of the solo music career she is about to begin, following the dormancy of her band, No Doubt. The song was released in 2004 and was produced by Nellee Hooper and co-written by Stefani and Hooper. The songs lyrics are about Stefanis fear of starting a solo career and the pressure she feels to succeed. The songs chorus repeats the phrase "What you waiting for?" as a way of urging herself to take a chance and pursue her dreams. The songs music video features Stefani in a variety of surreal and fantastical settings, including a forest, a castle, and a futuristic city. The song was a commercial success, reaching the top 10 in several countries, including the US, UK, and Australia.