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: "My Health Is Very Important To Me"
She hits back at tabloid reports about her health on The Voice UK.
Jessie J has said her health is "very important" and criticised the media for "making a joke about it".
The 'Price Tag' star took to Twitter after a tabloid newspaper said she was being monitored by doctors while she appears on The Voice UK.
Writing a series of posts about the reports, Jessie, who suffers from an irregular heartbeat, insisted that she was in good health.
"My health is a very important part of my life & I don't take lightly to the media making a joke about it," she wrote.
Jessie also suggested that the media should stop writing about her and visit children in hospitals who are in ill health.
Meanwhile, Jessie J is currently in Los Angeles and revealed earlier this week that she had been in the studio with Cee Lo Green.
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