Songfacts®:

• The second single by British songstress Jessie J off her sophomore studio album was penned by the singer with Ester Dean. The American singer-songwriter's resume includes US #1 hits for Rihanna ("Rude Boy," "What's My Name?") and Katy Perry ("Firework"). The song received its first radio play on Capital FM on August 5, 2013 and was released on September 15, 2013.
• Jessie told Capital FM about the song's music video. "It's basically me having parties," she said. "Three very different parties that I kind of bring together as one big party. There's some cameos in there, some of my best mates in there. It's a fun video where it's just me being silly. A lot of humor."
• The song shares its title with Lesley Gore's 1963 hit song about a birthday party. Gore's event turned out not to be the happy occasion she thought it would be when her boyfriend Johnny left with a girl named Judy.
• Speaking on the syndicated radio show, InDemand with Alex James, Jesse revealed that is was her detractors who inspired the song. "A lot of the time the haters - I hate calling them haters but that's the easiest way to sum it up - they need love more so than anyone else," she said. "I don't think hate does anything for the world. It doesn't do any good. I wanted to make sure I had a song that represented what I'm about."