Here’s a look at some notable birthdays being celebrated today:

Diana Ross

Age: 68

Occupation: Singer, Producer and Actress

Known For: Fronting the groundbreaking Motown group the Supremes, which had No. 1 hits like ‘Where Did Our Love Go’ and ‘Stop! In the Name of Love,’ solo hits like ‘Ain’t No Mountain High Enough,’ ‘Upside Down’ and ‘Endless Love,’ garnering an Oscar nomination for her role as Billie Holiday in ‘Lady Sings the Blues,’ and being named Female Entertainer of the 20th Century by Billboard magazine

Steven Tyler

Age: 64

Occupation: Singer, Songwriter, Musician and Television Personality

Known For: Being the lead singer of Aerosmith, known for songs like ‘Sweet Emotion,’ ‘Walk This Way,’ ‘Janie’s Got a Gun’ and ‘I Don’t Want to Miss a Thing,’ well-publicized battles with drug and alcohol abuse, his recently-released best-selling autobiography, being the father of model and actress Liv Tyler, and being a current judge on ‘American Idol’

Leonard Nimoy

Age: 81

Occupation: Actor and Director

Known For: Winning three Emmys for his iconic portrayal of Spock in the original ‘Star Trek’ series, going on to play the character in multiple film, television, and video-game sequels, starring on the series ‘Mission: Impossible’ for two seasons, and hosting the documentary series ‘In Search Of…’

Jennifer Grey

Age: 52

Occupation: Actress

Known For: Her star-making turn as Baby in ‘Dirty Dancing,’ playing the jealous sister of the title character in ‘Ferris Bueller’s Day Off,’ winning the 11th season of ‘Dancing with the Stars,’ being the daughter of actor Joel Grey, and an early 1990s nose job that left her almost unrecognizable

Kenny Chesney

Age: 44

Occupation: Singer, Songwriter and Musician

Known For: Racking up 20 chart-topping country songs, including ‘You Had Me from Hello,’ ‘The Good Stuff,’ ‘Summertime’ and ‘Reality,’ winning four consecutive ACM Entertainer of the Year Awards, his monster-grossing concert tours, and his very brief former marriage to actress Renee Zellweger