The broadcast of Käärijä's homecoming gig was seen by some 746,000 people last night, as Yle broadcast the proceedings live on television and online.
The television broadcast on Yle's TV2 channel had an average audience of 354,000 people, while the online stream at Yle Areena drew 36,600 viewers.
Fans around the world were able to watch the Areena version, as the stream was not geoblocked.
The concert, at the Helsinki ice hall, was sold out.
Käärijä came second in the Eurovision Song Contest one week ago with his entr, Cha Cha Cha, but finished top of the public vote tallies.