The hip-hop star announced his new merchandise line during a performance at the Made In America festival in Philadelphia, Pennsylvania on Sunday (04Sep16), and he unveiled the range on Thursday, during New York Fashion Week.

He planned to treat supporters to a "special pop up show" on the streets of the Big Apple to mark the occasion, and told fans on social media to meet him at the Bape Store in Manhattan at 7pm local time.

Hundreds showed up, causing traffic in the area to come to a standstill as police officers monitored the huge gathering.

Video footage posted online by Travis shows fans chanting his name, but the free gig was subsequently scrapped, and he suggested cops had shut the show down in a tweet.

"They won't let me rock outside," he wrote. "I love you guys. We gonna do this at a (official) show I guess."

He added, "I left though the back door get home safe (sic)".

Travis' extensive new merchandise collection features everything from clothing to candles, and pillows to condoms.