We have 9 photos showing singers belting out a song at Throston and Clavering Primary Schools.
Live performances at Northgate and Chuch Square also feature in our retro collection.
Take a look, see if you can spot someone you know and then get in touch to share your own memories.
1. Off to London
These pupils from the choir of St Marys RC Primary School, Meadowside were off to London to sing at the Royal Albert Hall in 2013. Photo: Picture by David Allan
2. All for a worthy cause
Singing for Kosovo in 1999 were Daniel Stubbs, Jessica Dinsmore, Amalia Pilar, Lauren McLaughlin, Jamie Marsden and Sophie Tasker. Remember this? Photo: Sunderland Echo
3. Rolling back to 2010
Sunderland fans singing the chorus to the Sunderland Foundation CD 'Keep it Rollin' before the match with Burnley in 2010. Photo: KB
4. Winners in 2013
East Herrington Primary School choir was winners of the Sunderland City Sings 2013 competition. Can you spot someone you know? Photo: Picture by Peter Berry