'Video Games' singer is rumoured to have booked an appearance on the reality series
John Giddings also says he's snared one of his headliners for 2013
Singer will play the festival's Big Top Stage
Singer also says she 'never says anything just to rhyme over sugary pop songs'
The 'Born To Die' singer played at a Mulberry event in the capital
Songstress recorded the track as a duet with rapper Smiler in 2010
Singer's label president says 'loads of brilliant tracks' are already lined-up for 'Born To Die' follow-up
The 'Born To Die' singer has been seeing Barrie James O'Neil for six months
Boy wizard defended 'Video Games' star's appearance without hearing it
Maverick Sabre, Van Halen and Young Guns are also set to go Top 10 this weekend