Jill Johnson, Eric Gadd, Lina Hedlund, Sabina Ddumba, Eah Jé, and the new version of the group Grymlings are some of the names playing at the concert in central Stockholm.
The concert is free to enter and will be broadcast live on SVT with Mark Levengood and Amie Bramme Sey as hosts.
King Carl Gustaf and Queen Silvia were married on June 19, 1976, but the celebration took place six days before the actual wedding day to avoid clashing with Midsummer Eve.
What do you think?