Glassheart takes the name from Leona's new album
Leona Lewis performs with Tony Bennett
Lewis performs with legendary crooner at London Palladium
Leona took to the stage with Tony Bennett to perform their song "Who Can I Turn To", part of Bennett's number 1 album "Duets II".
Bennett has collaborated with many stars on his new album, including Lady Gaga, Mariah Carey and the late Amy Winehouse.
Leona looked glamorous at the concert to celebrate Bennett's 85th birthday and the release of his new album.
The 26 year old was sporting bright red lips, straight hair and wore a bright blue sequin gown.
After the performance she tweeted: "An unforgettable evening performing with the legendary Tony Bennett."
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