Love is generally regarded as knowing no bounds, and one such boundary that isn't typically considered as one which defines it is age.

The respective ages of two people in a relationship don't always spell doom for a pairing -- even when the couple has a significant age gap. While couples who date or marry may have age gaps of anywhere between five and 30+ years, some have surprisingly proven that age truly is just a number.

This is no less true among some Hollywood couples, who continue to prove that age doesn't keep love away. While some have tried dating this way and seen their relationships eventually end, most have seen their relationships flourish -- despite the negativity and criticism for being with someone so much younger or older than they are.

Enstars compiled a list of some celebrity couples, both ones who are still together and ones who have since parted ways, who tried the May-December romance at one point. While some have since called it quits on their romances, most of these couples have found themselves succeeding at keeping their romances alive.

Scroll through the photo gallery to see which 12 couples made the list.