Rapper Iggy Azalea has apologised to fans after technical troubles blighted her live performance on a U.S. Tv talent show on Tuesday night (20May14).

The Australian star was a guest performer on the finale of Dancing With The Stars, but she had to halt a rendition of her new single Fancy due to a malfunctioning earpiece.

Azalea explained the technical troubles to the audience, saying, "I'm so sorry but there's something wrong with my ears (earpiece)," before resuming her performance.

She has now taken to Twitter.com to apologise to fans for the drama, writing, "I am so sorry guys! My in ears messed up and I couldn't hear the track. The dramas of live Tv. S**t happens. Still really enjoyed it."