"Happy" is the ninth single released by the Italian singer Alexia released in 1999 and is the title track and final single from her third album Happy. It was the first of her singles to miss the Italian top 10.
The track was released in Italy on CD and 12" (Sony Code 667996) in October 1999. Like "Keep On Movin'", there was no 2 track CD release. "Happy" was also released in Brazil where it received good radio play and was released in Finland in January 2000. It was the third Alexia single to have a remix by Almighty, but despite the CD having a '12" Almighty Mix" there was no 7"/ Radio Edit.
The song was also featured on a Taiwanese drama series Meteor Garden