Morecambe & Wise, the Two Ronnies, Ant & Dec, Little & Large, Cannon & Ball, Reeves & Mortimer, and Councillors Graham & Pat Latty are just some of the duos who have kept us amused over the years.
And now we have a new partnership: Euan & Jamie.
They met in Red Class at Guiseley Infants in September and, other than when Jamie's thrown the occasional girlie strop, they've been best friends ever since.
And they have range. As well as their trademark slapstick routines, they are capable of taking on Ant & Dec-style talent show presenting roles. Here they are preparing their next link as their sisters go head-to-head in a dance-off.
Their boy bond was underlined in their school reports, which came out on Friday.
Mrs Buckton, their teacher, wrote in Jamie's:
"He has a good circle of friends and has made one special friendship."
And I understand from Euan's mum Kate that Mrs Buckton said something pretty much identical in his.
Let's just hope that us parents can ruthlessly exploit them for our personal financial benefit in the years ahead.
