The A-list celebrity was all smiles as the Bhoys won the Scottish League Cup.
Brown was pictured along the A-list celebrity, while Craig Gordon is also in shot after the Bhoys beat Dundee United 2-0 in the final.
Goals from Kris Commons and James Forrest sent Celtic fans into delirium and secured the first title of the Ronny Deila era.
The image was a far cry of the one where Brown was pictured slumped in the street after a reported drunken night out just days before the game...
So Brown all smiles, Gordon all smiles, Stewart all smiles. Celtic all smiles.
Next up for the Bhoys is yet another double header against Dundee United - but, for now, Deila and co will be a little too busy celebrating.
Meanwhile, former Celtic strikers John Hartson and Gary Hooper took to Twitter in celebration after Celtic's 2-0 win, praising midfielder Kris Commons in particular.
That's the first hurdle completed for Deila's Hoops. Now two more...