Since becoming a mother, Britney Spears has often been surrounded by fans and photographers while out and about with her kids — but five-year-old Sean Preston recently saw what a real crowd looks like when his mom brought him out on stage during one of her shows.

At the end of the Columbus, Ohio stop on her Femme Fatale tour, amateur video shows Britney with her eldest son, who smiles and waves at the cheering crowd as Britney plants a kiss on his cheek.

It’s been an exciting month for Sean — he and his younger brother, Jayden James, recently welcomed a new half-sister when dad Kevin Federline’s girlfriend gave birth to a little girl on August 15.

As for Britney, she’s set to receive a lifetime achievement award at the 2011 MTV Video Music Awards on August 28, after which she’ll kick off the European leg of her worldwide tour.

[PopCrush]