There are, at least, 19 artists named Alaska:
These are photos from concerts where Alaska played, so they may be of other bands that played the concert as well.
Deep Purple & Friends Knebworth UK 1985 Jun 22, 1985 Stevenage, England, United Kingdom Uploaded by Rockerman75
The Return of The Knebworth Fayre Jun 22, 1985 Knebworth, England, United Kingdom Uploaded by Jon D
Manowar / Helloïse / Acid / H Bomb / Alaska Oct 7, 1984 Enschede, Overijssel, Netherlands Uploaded by Evilonline