Highly-coveted tickets for an "acoustic evening" with the Biebs at the Danforth Music Hall on Monday — which seats just over 1,000 — were snapped up fast following the Stratford singer's surprise announcement.

They were sold out within two minutes, according to Bieber's record label, Universal Music.

Dozens of disappointed beliebers, who were unable to score tickets, argued they were snatched by scalpers. There are already several listings on StubHub, pricing the tickets at $400 and well into the thousands. They were originally sold at $100 apiece.

The 21-year-old singer tweeted Tuesday afternoon that it was "time to bring Purpose home." Bieber released the album, which includes the hits What Do You Mean? and Sorry, in early November.

The evening with Bieber is set to take over the Danforth Music Hall on Monday at 6:30 p.m.

Bieber tweeted that proceeds will go toward the the Stratford House of Blessing, which offers several services including budget counseling, a food bank and also provides clothing and furniture.

Bieber will play at the Air Canada Centre in May as part of his Purpose World Tour.