Vikerlased (The Vikings) is an Estonian opera in three acts by Evald Aav,[1] his only opera. It is considered to be the first Estonian opera.[2] The libretto is by Voldemar Loo, brother of the composer's first wife, Ida Loo-Talvari. The libretto depicts events related to Pillage of Sigtuna in 1187.
The premiere was on 8 September 1928 at the Estonia Theatre in Tallinn, conducted by Raimund Kull.
The opera lasts 2 approximately hours and 15 minutes.