Veteran rocker Steven Tyler was treated to a surprise party in Los Angeles on Thursday night (27Mar14) to mark his 66th birthday. The Aerosmith star's children Mia, Taj and Chelsea joined forces to organise the bash at the 1Oak nightclub, where Chelsea's band BadBad took to the stage to entertain guests, including comedian Jim Carrey and Dj and Tv personality Ryan Seacrest. The birthday boy's actress daughter Liv Tyler was unable to attend due to filming commitments.