Mattie Jay, of pop band Busted, has been told to belt up after his trousers fell down on stage.
The 18-year-old, described on the band's website as "all mouth and trousers" failed to live up to his billing as he bounded around on stage at a packed concert at Stockton Riverside at the weekend.
Mattie's baggy cargo pants slipped down exposing his white boxers - to the delight of thousands of screaming teenage girls.
Fellow band members James Bourne, 18, and 16-year-old Charlie Simpson struggled to keep playing while guitar-swinging Mattie redressed the situation.
However, the band went down a storm at the TFM Radio station concert.
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