Actor Jane Alexander is 85.

Actor Dennis Franz is 80.

TV personality Caitlyn Jenner is 75.

Actor Annie Potts is 72. Microsoft co-founder Bill Gates is 69.

Actor-comedian Andy Richter is 58.

Actor Julia Roberts is 57.

Country singer Brad Paisley is 52. Actor Joaquin Phoenix is 50. Actor Matt Smith is 42. Singer Frank Ocean is 37.

Cool fact: During testing, the first steam locomotive broke a belt and lost a race to a horse-drawn train in 1827.