'Do It Like A Dude' hitmaker Jessie J is due to perform at the 2013 iTunes Festival in London on September 23 and has given her fans a chance to win tickets by launching an exciting competition.

Tickets for the concert can be won via iTunes, but the beauty is offering up another chance to win and all followers have to do in order to enter is answer a simple question. This mini-contest runs until September 11, which is tomorrow, and the answer is a lyric to her latest single 'It's My Party'.

Meanwhile, Jessie J took to her official Instagram account late last night and shared a personal thought with her Heartbeats: "I had a moment in the church I performed in tonight. I stood still and closed my eyes and thought... I may make mistakes and let people down sometimes. I don't always get life right. I accept I have flaws as we all do and everyday I am trying to conquer them and be a hopeful and inspiring energy in this crazy world."

She added: "I am always seeing where I can give more and be remembered as a courageous and admirable woman now and forever. My intentions are always to be light. Never dark. My heart is always leading me, learning and growing everyday. Thank you for believing in me and guiding me past the ones who try and bring dark into my life. I am so thankful for all that I have... #amen."

Watch her music video for 'It's My Party' below: