They had an audience of millions when they took to the stage of Britain's Got Talent, making it all the way to the show's finals.
But Richard and Adam Johnson were happy to give a more intimate performance this week at the Pear Tree Centre in Milton Keynes.
The brothers dropped in on the over 60s lunch club for a surprise show.
They were inspired by their beloved nan, who's always been a big supporter of their singing.
Now she has dementia, their music is all the more important to her.
It's not the lunchtime entertainment they're used to at the Pear Tree but they wouldn't say no to another visit.
For the brothers this was one performance in a series of visits, their next stop the Venton Day Centre in Northampton.
And as for future plans - a different sort of national tour next year following their latest album making it into the top five.
Click below to watch a report from ITV News Anglia's Alistair Nelson