Lana Del Rey previews new single 'West Coast' live...

Last night, Lana Del Rey performed a preview of her new single 'West Coast' during her concert in Las Vegas. Her first show of 2014 took place at The Chelsea, where fans were treated to an acapella version of the song. 

She wanted to play the whole song with the band, but opted to perform the chorus instead. Label's orders most likely, which sucks.

They don't want to ruin next week's royal premiere. 'West Coast', which serves as the lead single from her second studio album 'Ultraviolence', is set to premiere during Fearne Cotton's BBC Radio 1 show on Monday morning (April 14th).

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Thoughts?