Nick Jonas delivered alcohol to fans' houses and gave them a private performance on Friday night (27.03.15)

The 22-year-old singer became a delivery boy for the mobile app Saucey for four hours and turned up at customers' homes in Los Angeles with their bottles of booze and gave them a mini concert.

Claire Gendel ordered some alcoholic beverages after she got a notification from the Saucey app claiming they had heard a rumour Nick was making deliveries for the company in California.

She told E! News: ''We were running out of vodka anyways but I never thought he'd show up with my delivery, let alone perform in my living room! It was crazy!

''He poured everyone shots and took photos. He was super nice.''

Ellen Sweeney added: ''Nick was so nice. Super charming and down to earth. Great guy. And I was totally surprised.

''He showed up and sang two songs--'Jealous' and 'Chains' And we each had a glass of wine and cheered and all that. After the songs, we chatted for a bit. He was so nice. It was insane!''

The former Jonas Brothers singer, who made around 10 deliveries throughout the night, hinted that he was teaming up with the alcohol delivery app on Twitter earlier on in the night.

He tweeted: ''@SauceyApp follow this and download the app. Surprises in store tonight for the greater Los Angeles area tonight. #goodtimes (sic).''