Jay z and Beyonce 15 years
Jackman and his wife, she's 13 years older...
I truly believe that any grown adults that find true love with someone over the age of 18yrs old, possess a valid HS diploma and does not live with their rearing parents and that grown adult says 'fuck true love, the other person needs to be a certain age!" is doing themselves a life disservice, trust I see folks sooooo miserable with their same age wife, it ain't even funny, but I know folks with age difference 10-15 years and they are so happy and grounded.
In this world of know everything mothafucas most time(not all but most) a same age couple has little to offer each other after the first 3-7 years and statistics shows that's usually when the divorce shit starts.
Jmo