You haven't made it until E-40 composes a song for you. Those are the unwritten rules.
The Bay Area native rapper recently released a song dedicated to the undefeated 49ers' streak titled "Niner Gang," and it's very catchy.
To start things off, you hear "Bang bang Niner gang," a few times over, then the love for the team shines through.
Not only does the song highlight the history of the 49ers, but gives major props to the "the liveliest fans in the NFL."
"I tried to told 'em we back & we never left and we got a heart, Levi's Stadium starting to feel like Candlestick Park ... "
The 49ers' Instagram account commented along with NFL veteran running back Reggie Bush -- both in favor of it.
[RELATED: How E-40 would be as GM for Warriors]
Yes, we have it stuck in our heads, too.
E-40 also came out with a Warriors' version of his "Choices" song when the Warriors were -- well, a phenomenal team. It's quite the jam also.
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E-40 won't be one to tell the Warriors' stars when to go.
Bleacher Report asked the legendary Bay Area rapper in a video published Thursday what he would do if he was Golden State's general manager for a day. Every basketball executive has got choices, and one of E-40's first would be to sign Steph Curry, Klay Thompson and Draymond Green to lifetime deals.
"Because they are the core," E-40 said. "They are the ones who started it all. And they built it from the ground up. Like, they didn't -- they wasn't superstars at first. They made themselves into superstars. I think because of that, they deserve it."
The NBA's collective bargaining agreement only allows teams to re-sign with their teams for up to five years, but I wouldn't put it past E-40 to snap his fingers and do it all by himself. A lifelong Warriors fan, 40 has seen Golden State evolve from afterthoughts to the toast of the league within the last decade. With three rings to their names and an era of the NBA defined by their dominance, Curry, Thompson and Green need to do little else to end their careers as the most accomplished players in Warriors history.
[RELATED: Zaza joins Warriors as consultant; Dunleavy Jr. promoted]
If anyone deserves such an honor, it would be the Warriors' superstar trio. Of course, E-40 said that wouldn't be his first order of business as Golden State's GM.
"Rappers such as E-40 has complimentary seats," he told Bleacher Report. "'Cuz they show a lot of support for the region, for the team, for the cause. I think that home-team advantage and just seeing support [is important, and] not only that, but at the same time, the love is showed back."
He is out here trying to function, after all.
Well, that didn't take long.
With the Raptors knocking off the Milwaukee Bucks at Scotiabank Arena on Saturday night to claim the Eastern Conference crown, Toronto now will face the two-time defending NBA champion Warriors for the right to hoist the Larry O'Brien Trophy.
The Warriors-Raptors matchup will be chock-full of interesting matchups, including a clash between rappers E-40 and Drake.
Drake has been antagonizing opposing players, coaches and fans for quite some time, so it's only natural the two rappers would engage in some good-natured trash talk ahead of Thursday's Game 1.
E-40 got it started Monday by posting a picture of him and Drake to Instagram.
Drake was quick to fire back.
Drake obviously is thrilled that his Raptors made it to their first NBA Finals in franchise history, but the global icon also has tattoos honoring Steph Curry and Kevin Durant, which is going to be a little awkward over the next few weeks.
[RELATED: KD-Drake trash talk could be fun subplot of NBA Finals]
Either way, the trash talk will only get ramped up from here on out.