Ice Cube is the man behind one of the best rap songs of all time, 'It Was A Good Day'.

He describes what makes the day so good throughout the song, but never tells us exactly what day it was.

The world had been clueless as to the date of Cube's infamous "good day", until now!

According to a blogger named Donavan January 20th is Ice Cubes good day.

He followed the clues that Cube gave in his song, and used them to come to his conclusion.

"went to short dogs house, they was watching Yo MTV RAPS"

Yo MTV RAPS first aired: Aug 6th 1988

Ice Cubes single 'It Was A Good Day' was released on: Feb 23 1993

"The Lakers beat the Super Sonics"

Dates between Yo MTV Raps air date AUGUST 6 1988 and the release of the single FEBRUARY 23 1993 where the Lakers beat the Super Sonics:
Nov 11 1988    114-103
Nov 30 1988    110-106
Apr    4 1989    115-97
Apr  23 1989    121-117
Jan  17 1990    100-90
Feb  28 1990    112-107
Mar  25 1990    116-94
Apr  17  1990    102-101
Jan  18  1991    105-96
Mar  24  1991    113-96
Apr  21  1991    103-100
Jan  20  1992    116-110

Dates of those Laker wins over SuperSonics where it was a "clear day with no smog":
Nov 30 1988
Apr   4  1989
Jan 18  1991
Jan 20  1992

"Got a beep from Kim, and she can f--k all night"
Beepers weren't adopted by mobile phone companies until the 1990s. Dates left where mobile beepers were availible to public:
Jan 18 1991
Jan 20 1992

Ice Cube starred in the film "Boyz in the hood" that released late Summer of 1991, but was being filmed mid-late 1990 early 1991 and Ice Cube was busy on set filming the movie Jan 18 1991 too busy to be lounging around the streets with no plans. Ladies and Gentlemen..

The ONLY day where:
Yo MTV Raps was on air
It was a clear and smogless day
Beepers were commercially sold
Lakers beat the SuperSonics
and Ice Cube had no events to attend was…

January 20th 1992