Actor Will Smith offered some words of advice, as he addressed teenagers at a school in Tulse Hill.
This video posted on Youtube - and shot by Will Smith himself - shows school-girls in Lambeth going wild for their Hollywood visitor.
Great to show Will Smith around Brixton this morning with @jowellt. More to follow
Pupils at St Martins, many of whom are my constituents, had no idea Will Smith was coming to school today. Incredible reception!
Great to show off our awesome #Lambeth - Will wanted to see "real" London and it doesn't get more real than Lambeth!
Labour MP Chuka Umunna has given Will Smith a tour of Lambeth today, saying that the Hollywood star wanted to see the "real London".
The pair called into a music venue and a coffee shop in Brixton before taking questions from students at St Martin-in-the-Fields High School for Girls in Tulse Hill.
The Hollywood star - famous for roles in The Fresh Prince of Bel-Air and Men in Black - met students at St Martin-in-the-Fields High School for Girls in Tulse Hill, doing a question and answer session and signing autographs.