Waiting 4U Tour was a co-headlining concert tour by Australian singer Cody Simpson and American singer Greyson Chance. The tour was launched to promote Simpson's debut EP 4 U (2010), and to gain interest and publicity for Greyson Chance. After the success of their hit album, "Little Finger, Big Guy", they decided to take the show on the road with a tour. Both singers revealed the announcement of the tour on March 10, 2011 during a live chat with fans on Ustream.