Mr. Mucus to debut rapper Phlegm Boi at Primary Wave's pre‑Grammy party

Primary Wave’s 20th anniversary pre‑Grammy party will feature an unexpected guest: the Mucinex mascot Mr. Mucus, who Page Six says will unveil a musical alter ego called Phlegm Boi and debut a single titled “The Booger Banger.”

Page Six describes Mr. Mucus as the anthropomorphic green snotty blob from Mucinex ads, the character known for “terrorizing nasal cavities” in over‑the‑counter decongestant commercials.

The outlet says it was invited to watch the debut, noting the tongue‑in‑cheek pitch that the mascot — now Phlegm Boi — is aiming for chart success. Page Six quipped, “Look out, Bruno Mars, he’s coming for that top Billboard spot!”

Mr. Mucus is expected to mingle with guests including Moby, Def Leppard and Boyz II Men at a swanky Beverly Hills venue, though Page Six did not disclose the location. Trombone Shorty and CeeLo Green are also slated to perform at the party Saturday.

Other high‑profile Grammys events this weekend mentioned by Page Six include a Sabrina Carpenter‑themed event by Johnnie Walker, Universal Music’s Sunday after‑party and Steven Tyler’s seventh‑annual Grammys viewing party, which donates proceeds to his charity Janie’s Fund.

Page Six says the Beverly Hills venue was not revealed to avoid paparazzi; beyond the planned debut and performances, details such as how the single will be received were not provided.

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