Sure, Harry Morton deserves a big blowout: The Hard Rock heir works hard for his dad’s company. But how do he and his fellow high-rollers rank with other 21-year-old achievers?

Name: Maya Lin

Occupation: Designer and architect

Accomplishment by age 21: Designed National Vietnam Veterans Memorial

Name: Bill Gates

Occupation: Computer innovator

Accomplishment by age 21: Co-founded Microsoft

Name: Lou Ferrigno

Occupation: Bodybuilder

Accomplishment by age 21: Youngest athlete ever to win title of Mr. Universe

Name: Mary Shelley

Occupation: Author

Accomplishment by age 21: Wrote literary masterpiece “Frankenstein”

Name: Tiger Woods

Occupation: Golfer

Accomplishment by age 21: Won more than $2 million on PGA Tour; voted PGA Player of the Year and AP’s Male Athlete of the Year

Name: Jodie Foster

Occupation: Actress

Accomplishment by age 21: Won multiple awards for role in Martin Scorsese’s “Taxi Driver”

Name: Diana Spencer

Occupation: Princess

Accomplishment by age 21: Married Prince Charles

Name: Wolfgang Amadeus Mozart

Occupation: Composer

Accomplishment by age 21: Composed numerous operas and symphonies; appointed concertmaster to the archbishop of Salzburg