- Lipnicki is celebrating the milestone birthday in Las Vegas
- The party continued Saturday with a cake and dinner at Lavo
- Lipnicki has spent a bulk of his time studying and fiercely working out
Get ready to feel old.
Jonathan Lipnicki, the inquisitive tyke who charmed Tom Cruise's "Jerry Maguire" with his oversized glasses and musings on bees' ability to smell fear in the 1997 film, turned 21 Saturday.
The actor is celebrating the milestone birthday in Las Veg