Diana Ross Surprises Beyoncé at Her Renaissance Concert in LA

The legendary Diana Ross made a surprise cameo at the third and final Los Angeles show of Beyoncé's Renaissance tour on Sept 4, which just so happened to be Bey's 42nd birthday.
Viral video taken at the concert shows the 79-year-old helping lead the crowd in a rendition of 'Happy Birthday.'
'There would be no me without you,' a visibly touched Beyoncé told Ross.