NICKI Minaj looked to be at the height of ecstasy during her raunchy performance with Justin Bieber at the American Music Awards.The singer – who also performed solo in a fluffy wintry outfit – pulled a sex face as she thrust her bulging behind in the teen titan’s direction.Newly-single Justin appeared equally caught up in the saucy moment, pushing his middle region towards the busty rap queen’s booty and pulling hungrily at his red leather trousers.The stars’ ‘Beauty And The Beat’ collaboration was among the live highlights at the prize-giving bash at the Nokia Theatre in Los Angeles.But there was a host of other stellar performances on the night. Christina Aguilera vied to out-boob Nicki in typically revealing stage attire.The singer ensured her ample assets didn’t go unnoticed in a star-emblazoned bodysuit at the 40th anniversary bash, where she performed Lotus, ‘Army Of Me’ and ‘Let There Be Love’. Daily Mail