US TV network ABC has apologised to its viewers after part of Nicki Minaj's costume fell off during a televised gig on Friday.

The 28-year-old rapper was performing in Central Park for the Good Morning America show when her top slipped down.

Despite a five-second delay some US viewers still saw what happened though it was later edited out of repeat broadcasts.

In a statement ABC said: "We are sorry that this occurred."

The network's apology followed complaints from viewers.

Minaj continued her show despite the slip, performing Moment For Life and her UK number 10 hit Super Bass.

She released her debut album Pink Friday last year on Young Money, the label owned by US rapper Lil Wayne.

It's since gone platinum, selling more than a million copies worldwide.

She recently was added to the cast for the forthcoming animated film Ice Age: Continental Drift.