The artists will also be joined by the likes of Rizzle Kicks, Jamie Cullum and Tinie Tempah for the gig in London this September.
Jessie J On Voice Problems: "I'm Feeling OK"
The 'Who's Laughing Now' singer says she is still struggling with illness but excited for Sydney show.
Jessie J has admitted she is still struggling with her voice after a recent batch of illness which lead to her suffering from "vocal exhaustion".
The 'Price Tag' star confessed that she is "okay" and excited to perform in Sydney today (8th March) after making her live return in Melbourne yesterday.
Earlier this morning, she tweeted: "Voice has been through it today but I'm feeling okay! I can't wait to party with Sydney tonight with all my #heartbeats @rubyrose1 @professorgreen @amymeredith wooooo."
The 'Who You Are' singer was forced to cancel some of her Australian dates earlier in the week after problems with her voice and immediately expressed her devastation at having to pull the shows.
Professor Green, who is also on tour with the star, was equally apologetic and sympathised with his friend's vocal trauma.
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