A catchy clap-and-response ode to the seductive powers of lip gloss has created a sensation on the pop music charts and now, perhaps, at the cosmetics counter.

“Lip Gloss,” is the lead single from a 17-year-old rap starlet and Brooklyn native, Lil Mama, whose debut album, “The Voice of the Young People,” is a collection of beat-heavy hip-pop sounds. Lyrics include: “MAC., L’Oreal — yep cause I’m worth it/Love the way I puts it on so perfect/Wipe, the corners of mouth so I work it/ When I walk down the hallway, they can’t say nothing.'”

Although marketing and sales executives at MAC and L’Oreal would not release sales information, the rhythmic nod to the precious staple of one’s makeup bag has proved to be product placement at its best.

“It’s what we do in hip-hop, whether for bragging rights or just making music, rappers will talk about their bling, their sneakers,” an associate editor at Vibe magazine, Shanel Odum, said of the lyrical musings traditionally offered up by rap artists.

The annals of popular music are scattered with works that pay homage to an artist’s favorite things — from Elvis’s “Blue Suede Shoes” to rapper Nelly’s paean to Nike’s “Air Force Ones.”

While footwear and liquor have been typical fodder for rap songs, glowing tributes to makeup have been mostly absent.

That may be changing now that cosmetics companies are increasingly turning to celebrities such as rappers Missy Elliot and Lil’ Kim, who are featured in campaigns for MAC, and singer Beyoncé, who signed a deal with L’Oreal, to represent diffusion lines in print and broadcast advertising.

“Makeup is very much inspired by the fashion, music, and entertainment industries and I think that beauty has the same effect on them,” the vice president of artistry for MAC Cosmetics, Gordon Espinet, wrote in an e-mail to The New York Sun. “It’s a symbiotic relationship. A perfect example is Lil Mama’s song ‘Lip Gloss.'”

The founder of the beauty Web log, “Shake Your Beauty,” Tia Williams, called “Lip Gloss” the “best free advertisement L’Oreal and MAC. could have asked for.”

Ms. Williams, the author of the popular young adult book series, “It Chicks” (Jump at the Sun/Hyperion), said she has seen firsthand during panel discussions and book signings the impact of Lil Mama’s verse. She said it has inspired teenage girls to collect tubes of lip gloss, each gloss boasting its unique properties, such as shine, matte, plump, color, or flavor.

Vibe’s Ms. Odum said she didn’t think Lil Mama’s song would have the same impact as songs about Hennessy or Patron — the tequila and French Cognac brands preferred by many rappers, sales of which have reportedly enjoyed measurable increases after being called out in song.

“But young women have long taken their cues from music videos, and even if they aren’t moved to buy a specific product, they will go for the look,” she said.

Ms. Odum, a former editor at Vibe’s recently shuttered sister publication, Vibe Vixen, where trends in beauty, music, and fashion were smartly offered up for young multiethnic women, predicted that the song would sound a high note in a beauty market that has seen gloss overtake lipstick as the stain of choice.

She also surmised the success of Lil Mama’s song “may have companies reacting to it, and the endorsement deals may follow.”