John Cena

John Felix Anthony Cena is a professional wrestler, rapper, and actor. After becoming the subject of an Internet meme in 2015, Cena became a minor meme on the SiIvaGunner channel.

Background
He debuted on the WWE main roster in 2002 and has since become one of the company's most popular wrestlers. Since March 17, 2005, John Cena's entrance theme has been "The Time Is Now", a song recorded by Cena and his first cousin, Tha Trademarc.

In 2012, the Z Morning Zoo podcast on the FM radio station WNVZ did a "phone scam" on an unsuspecting wife where they pretended to be advertising for a WWE pay-per-view event featuring John Cena. This prank phone call would later be uploaded to YouTube in March 2014 where it currently has over 35 million views.

In the summer of 2015, the "Unexpected John Cena" meme, mostly centered around the aforementioned phone scam, emerged and achieved peak popularity.

Rips
"The Time is Now" is a minor meme on the channel, and has been featured in over 40 rips. It notably appeared in the Reboot finale rip, "P-R-O-G-R-A-M (Vagrant Counting Song of Retrospection) - Kirby Planet Robobot", which would seem to indicate that it was considered a major channel meme at the time despite having few appearances (though "Do Your Best" by Geethanjali Kids, another meme only really popular outside of SiIvaGunner, also appears in the rip).

The phone scam and Unexpected John Cena meme, however, is very rarely seen on the SiIvaGunner channel. The meme was already half a year old by the time the GiIvaSunner channel started, so it's likely because it was already overused and stale. Cena's appearance as the tenant of the "Stale Meme Shop" in "A "Hard Day's Work" - Mr Rental: The Video Game" seems to indicate this. Another explanation is that the meme could be too mainstream, like "Never Gonna Give You Up".