Tom Brady 'announces' retirement in first Twitter post - on April Fools'

(FOX 2) - Tom Brady, the six time Super Bowl winning quarterback and Michigan alumn, 'announced' his retirement in his first ever tweet - published on April Fool's.

Brady just now is on Twitter - welcome to 2008, pal - and in his first ever tweet, he gave non-Patriot NFL fans what they want: his retirement.

"I'm retiring. In my spare time, I'll be tweeting #LFG"

The LFG hashtag is NSFW (google those acronyms if you don't know).

Of course, Monday is April Fool's. Twitter users quickly pointed that out and Brady later tweeted again and asked if it was a bad joke.

No, Tom. It might have been the greatest joke of all time (GJOAT?) - a point proven by the 50,000 likes and 20,000 retweets.

Brady turns 42 in August and won his sixth Super Bowl in February with the Patriots. This will be his 20th season in the NFL.