Mike Trout Celebrates 21st Birthday in Style

Millville High School's Mike Trout has been making his mark all season, and that didn't stop just because he turned 21 Tuesday. In fact, he celebrated by clubbing the 25th home run of his career.

Only eight players in major league history had more home runs by the time they started their 22nd year on earth. Two of them (Frank Robinson, Alex Rodriguez) also homered on the day they turned 21.

Here are players with 25 or more career home runs through the day of their 21st birthday: