The US pop star performs 'Why'd You Only Call Me When You're High?' during 'MTV Unplugged' appearance
Pop star also says she loves getting stoned
The pop-stars collaborated by performing a mash-up of their hits in Los Angeles last night (January 28)
Singer adds cartoons of 'Ren & Stimpy' are her main inspiration for the tour
'Wrecking Ball' and 'Work Bitch' videos cannot be shown until after 10pm
'Only Fools and Horses' actor hits out at twerking pop star
Singer says her performing persona is just a 'character'
The promo for the single sees the singer pretending to masturbate
'Wrecking Ball' singer posted the image on Twitter yesterday (December 14)
Comedian Richard Woolford wins £5000 in Twitter contest for his joke that links the singer with a festive dinner