Wonder Man has landed on Disney's superhero slate with its debut season, and since its premiere, it has made many pop culture icons and celebrities official MCU canon.Let's not forget that Wonder Man is only continuing a trend that was well set by movies that came even before the show. Starting with Iron Man 2, where celebrities like Elon Musk were spotted with Sia, who appears in Black Widow (Radio), the MCU is giving fans reasons to look forward to who's next.Celebs who became canon in the MCU post Wonder Man premiereMCU has been one of those forces to blur the boundaries between what's real and what's fiction, even before Wonder Man. Celebrities and their lives have always been a staple of pop culture lovers.Iron Man (Image via Prime Video)The tradition of introducing real-world characters as themselves creates a meta layer in otherwise traditional storytelling. Even before Wonder Man, it began with direct appearances like Elon Musk's entry in Iron Man 2. Here, he had briefly appeared in Iron Man 2 in a scene with Tony Stark, played by Robert Downey Jr.Sometime later, Kevin Bacon also played himself in The Guardians of the Galaxy Holiday Special. But not always do these integrations happen via direct appearance.Sometimes they unfold through background media, or music choices that openly blink at real-world events, celeb personalities, and headlines. The result is an MCU that doesn’t exist in a sealed superhero bubble but one that engages in meta-commentary.Music has always been a bridge that brings pop culture and canon together in innovative and experimental ways. AC/DC’s presence across the Iron Man trilogy was a pivotal part of Tony Stark’s public persona.Apart from this, notable mention is Queen’s Don’t Stop Me Now which was also made canon in the manner of Freddie Mercury-linked tracks. Both are explicitly part of the MCU soundscape in The Avengers and Thor: Love and Thunder, respectively.Guardians of the Galaxy leans heavily into this intent of bringing two worlds close. It turns Earth music into a narrative texture and does not incorporate it as a background presence.It references The Beatles in Infinity War and the meta use of Footloose alongside Kevin Bacon, which underlines how the MCU never looked away from clever nods that are right there.Fans of the franchise know that WandaVision is the one leaning heaviest onto this trope. MCU has evoked references like Malcolm in the Middle and The Sopranos, by bringing iconic tv figures such as Bryan Cranston and James Gandolfini.Thus, MCU's cultural vocabulary was made stronger by appearances like Michael J. Fox. Even though he is never physically present, Back to the Future is name-checked. It reappears in Endgame’s time-travel debate, making Fox’s cultural legacy within the MCU even stronger.More recent entries close to Wonder Man extend this strategy into contemporary celebrity culture. Lil Nas X’s music appears diegetically during the Shang-Chi bus fight, Sia is heard on the radio in Black Widow, and Will Smith’s Fresh Prince of Bel-Air exists as in-world television in Captain Marvel.Even franchises like Star Wars are acknowledged outright across multiple MCU films, confirming that Marvel’s universe coexists with other major pop-culture mythologies.Taken together, these moments show MCU's commitment to offering relatable crossovers and bridges to fans for their favorite icons and celebs.