1 of 34 Selena Gomez & Annette Funicello: Selena was born in 1992 and Annette was born in 1942.
Photo: Getty Images2 of 34 Lily Collins & Audrey Hepburn: Lily Collins was born in 1989 and Audrey was born in 1929.
Photo: Getty Images3 of 34 Lindsay Lohan and Elizabeth Taylor: Lindsay was born in 1986 and Elizabeth was born in 1932.
Photo: Getty Images4 of 34 Emma Mackey and Margot Robbie: Emma was born in 1996 and Margot was born in 1990.
Photo: Getty Images5 of 34 Emma Watson and Kiernan Shipka: Emma was born in 1990 and Kiernan was born in 1999.
Photo: Getty Images6 of 34 Gwen Stefani & Madonna: Gwen was born in 1969 and Madonna was born in 1958.
Photo: Getty Images7 of 34 Sofía Vergara and Sophia Loren: Sofía was born in 1972 and Sophia was born in 1934.
Photo: Getty Images8 of 34 Harry Styles & Mick Jagger: Harry was born in 1994 and Mick was born in 1943.
Photo: Getty Images9 of 34 Julianne Hough & Meg Ryan: Julianne was born in 1988 and Meg was born in 1961.
Photo: Getty Images10 of 34 Carla Bruni and Bella Hadid: Carla was born in 1967 and Bella was born in 1996.
Photo: Getty Images11 of 34 Janis Joplin & Joss Stone: Janis was born in 1943 and Joss was born in 1987.
Photo: Getty Images12 of 34 Zendaya & Rihanna: Zendaya was born in 1996 and Rihanna was born in 1988.
Photo: Getty Images13 of 34 Christina Aguilera & Cyndi Lauper:Christina was born in 1980 and Cyndi was born in 1953.
Photo: Getty Images14 of 34 Rob Lowe and Ian Somerhalder: Rob was born in 1964 and Ian was born in 1978.
Photo: Getty Images15 of 34 Brittany Murphy and Lili Reinhart: Brittany was born in 1977 and Lili was born in 1996.
Photo: Getty Images16 of 34 Rachel Bilson and Kaia Gerber: Rachel was born in 1981 and Kaia was born in 2001.
Photo: Getty Images17 of 34 Jesy Nelson & Geri Halliwell: Jesy was born in 1992 and Geri was born in 1972.
Photo: Getty Images18 of 34 Michael Clifford of 5SOS & Gerard Way of My Chemical Romance: Michael was born in 1995 and Gerard was born in 1977.
Photo: Getty Images19 of 34 Taylor Swift & Debbie Harry: Taylor was born in 1989 and Debbie was born in 1955.
Photo: Getty Images20 of 34 Carly Rae Jepsen & Carly Simon: Carly Rae was born in 1985 and Carly Simon was born in 1945.
Photo: Getty Images21 of 34 Ashley Graham & Eva Mendes: Ashley was born in 1987 and Eva was born in 1974.
Photo: Getty Images22 of 34 Kelsea Ballerini & Reese Witherspoon: Kelsea was born in 1993 and Reese was born in 1976
Photo: Getty Images23 of 34 Halsey & Pink: Halsey was born in 1994 and P!nk was born in 1979.
Photo: Getty Images24 of 34 Zac Efron & Leonard Whiting: Zac was born in 1987 and Leonard was born in 1950.
Photo: Getty Images25 of 34 Victoria Justice & Nicole Scherzinger: Victoria was born in 1993 and Nicole was born in 1978.
Photo: Getty Images26 of 34 Sam Smith & George Michael: Sam Smith was born in 1992 and George Michael was born in 1963.
Photo: Getty Images27 of 34 Kendall Jenner & Cher: Kendall was born in 1995 and Cher was born in 1946.
Photo: Getty Images28 of 34 Beyonce Knowles & Tina Turner: Beyonce was born in 1981 and Tina was born in 1939.
Photo: Getty Images29 of 34 Justin Bieber & Vanilla Ice: Justin was born in 1994 and Vanilla Ice was born in 1967.
Photo: Getty Images30 of 34 Billie Eilish & Scarlet Johansson: Billie was born in 2001 and Scarlett was born in 1984.
Photo: Getty Images31 of 34 Milly Bobby Brown & Natalie Portman: Millie was born in 2004 and Natalie was born in 1981.
Photo: Getty Images32 of 34 Nicki Minaj & Chaka Khan: Nicki was born in 1982 and Chaka was born in 1953.
Photo: Getty Images33 of 34 Carrie Underwood and Emily Osment: Carrie was born in 1983 and Emily was born in 1992.
Photo: Getty Images34 of 34 Teyana Taylor & Dionne Warwick: Teyana was born in 1990 and Dionne was born in 1940.
Photo: Getty Images