Since then, he has built up a thick book of bars, so much so that the 47-year-old has to Google his own lyrics when songwriting to make sure he doesn't repeat himself.
Speaking to Lil Wayne on his Young Money Radio show, the Real Slim Shady said: "When we first start out, it's just like a blank canvas. We paint on that s**t and keeping painting until every area is full.
"When you made so many songs about everything, it gets a little tricky... You start getting to the point where you've rapped about everything, you've rhymed every word there is to rhyme."
Wayne could relate with this predicament, and replied: "If you go through my phone history, my Google history and you press L, first thing that will come up is 'Lil Wayne lyrics'. I literally have to Google my lyrics to make sure I didn't say certain stuff before."
This songwriting habit struck a chord with Eminem - real name Marshall Mathers - who said: "Yo, I swear to god I do that too.
"That's funny as hell because I've been doing that for like the past five years, man. You be like, 'I knew I flipped this'."
If only Usher had thought about Googling his lyrics, maybe he would never have mentioned being in the club with his homies in all of his songs. I suppose as long as you can remember the lyrics when performing on stage, it doesn't really matter.
Fortunately for Eminem fans, it sounds like he's not letting lockdown stop him from working on new music.
He said: "I'm writing. I'm writing and recording a little bit, not as much as I normally do, but it's all good.
"I'm just waiting for this, us, being able to get past this thing, whenever that's gonna be."
Amen to that Marshall.
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