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Zendaya's birthday is September 1st! (Photo by Michael Buckner/Getty Images)
Beyoncé's birthday is September 4th! (Photo by Christopher Polk/Getty Images for Anheuser-Busch)
The CW's Austin Basis's birthday is September 4th! (Photo by Imeh Akpanudosen/Getty Images)
The CW's Kat Graham's birthday is September 5th! (Photo by Craig Bromley/Getty Images for Montblanc)
Idris Elba's birthday is September 6th! (Photo by Taylor Hill/Getty Images)
The CW's JD Pardo's birthday is September 7th! (Photo by Michael Yaris/WBTV via Getty Images)
Niall Horan's birthday is September 13th! (Photo by Kevin Winter/Getty Images for iHeartMedia)
Prince Harry's birthday is September 15th!(Photo by Stuart C. Wilson/Getty Images)
Nick Jonas' birthday is September 16th! (Photo by Bryan Steffy/Getty Images for iHeartMedia)
Amy Poehler's birthday is September 16th! (Photo by Kevin Winter/Getty Images)
Cristiano Ronaldo's birthday is September 18th! (Photo by Gonzalo Arroyo Moreno/Getty Images)
The CW's Danielle Panabaker's birthday is September 19th! (Photo by Mark Davis/Getty Images)
Jimmy Fallon's birthday is September 19th! (Photo by Kevin Winter/Getty Images)
Tom Felton's birthday is September 22nd! (Photo by Anthony Harvey/Getty Images)
Will Smith's birthday is September 25th! (Photo by David Becker/Getty Images for SHOWTIME SPORTS)
Hilary Duff's birthday is September 28th! (Photo by Theo Wargo/Getty Images for iHeartMedia)
