P!nk has taken aim at R&ampB star Chris Brown for allegedly lip-syncing via his performance at the 2012 Billboard Music Awards on Sunday night.

The Kiss Kiss hit-maker dazzled fans with a show-stopping efficiency of his new single Turn Up The Music at the star-studded ceremony in Las Vegas, and the gig had viewers in awe as BMX bike stunt troupes raced and spun on ramps on the stage behind him.

Even so, So What hit-maker P!nk was far from impressed by the high-frills show and she took to Twitter.com to call out Brown for focusing more on the visuals and less on the vocals.

She tweeted, “1 day if i lipsync (sic), i hope i do it as properly as him…”

Pink famously completed her own BMX-themed rendition of Raise Your Glass at the 2010 American Music Awards – all while pregnant with her daughter Willow – and the pop star’s supportive motocross racer husband Carey Hart, insists his wife did a much better job, adding, “Im (sic) fairly confident i saw my wife did (sic) that very same efficiency, but she was 3 months pregnant and actually sang the song.”

And Hart continued to hurl insults on Monday, adding, “I really like twitter! To clarify i was talkin (sic) trash bout CB performance, 2 years ago my wife had the identical set and really sang ‘Raise ur Glass’.”