Beyonce's big #BeyHereNow announcement has been revealed, and it's a Pepsi ad.

"Mirrors" does, however, feature a new song. In the ad, B is seen dancing in front of a mirror, as multiple incarnations of herself appear. There's the Destiny's Child-era Beyonce in a pink "Bootylicious" getup, the "Crazy in Love" Beyonce in a white tank and jean shorts, the "Single Ladies"-style hair and unitard and, of course, the modern B. (Scroll down for a gallery of stills.)

"Embrace your past," she says at the end, "but live for now."

UPDATE: The song that's teased in the ad is called "Grown Woman" and features production from Timbaland. It will be released on April 8. More on that here.

The original article continues below.

In a seconds-long YouTube video posted Wednesday, Beyonce is shown as new music plays in the background. Text then appears and directs users to pay attention at 9 am on Thursday, offering up the hashtag #BeyHereNow as a guiding light.

Pre-announcement speculation had many thinking the singer would unveil information about her album. Rumors of a new single have been percolating for some time, so a song, album title and release date were all plausible.

From our earlier coverage:

The choosing of 4/4 as the date to make an announcement is no surprise as Beyonce has repeatedly spoken about her love for the number four, even naming her fourth album, "4." (The "Ivy" in Blue Ivy Carter, Beyonce's daughter's name, channels IV, the Roman numeral for four. Both Beyonce and Jay-Z are born on the fourth day of their respective birth-months.)

"We all have special numbers in our lives, and 4 is that for me," Beyonce said in an interview with Billboard. "It's the day I was born. My mother's birthday, and a lot of my friends' birthdays, are on the fourth; April 4 is my wedding date."

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  • First, She Dances Alone

  • Then Things Get 'Bootylicious'

  • Time For 'Crazy In Love'

  • The Return Of 'Sasha Fierce'

  • All Together Now!

  • Everyone's Happy

  • And... BOOM

  • Beyonce back in the Destiny's Child Days at the 2002 Grammys

    (Getty)

  • B rocked a shimmery bustier dress to the Billboard Awards back in 2003

    (Getty)

  • Loving her lingerie a little too much at the 2003 Essence Awards

    (WireImage)

  • Beyonce the barbarian at the 2003 MTV Europe Music Awards

    (Getty)

  • A strange print for a night on the red carpet back in 2003

    (Getty)

  • Beyonce looking like a hot, gold mess at the 2004 Grammys

    (Getty)

  • Pretty in pink at the 2004 NRJ Music Awards

    (Getty)

  • Beyonce's the ultimate glamour girl, especially in this metallic romper from 2004

    (Getty)

  • Not the right silhouette for this famously curvy star, 2005

    (WireImage)

  • Beyonce does vixen velvet in this sultry black gown worn to the 2005 Oscars

    (Getty)

  • Matching with her Destiny's Child mates at the 2005 BET Awards

    (WireImage)

  • Not so red carpet ready in this yellow frock from 2005

    (FilmMagic)

  • Beyonce donned this intricate gown to the 2006 MTV VMAs

    (FilmMagic)

  • A sexy, sophisticated white gown worn to the 2007 Academy Awards

    (FilmMagic)

  • Effortlessly gorgeous at the U.K. premiere of "Dreamgirls" in 2007

    (WireImage)

  • B wore this appropriately revealing ensemble to the Sports Illustrated Swimsuit Issue event back in 2007

    (Getty)

  • Beyonce's a stunner in this black, embellished dress from 2008

    (FilmMagic)

  • And at the 2008 Grammy after party thrown by Sony/BMG

    (WireImage)

  • Beyonce's ice blue gown from the 2008 Grammys

    (Getty)

  • At the Kennedy Center Honors, 2008

    (Getty)

  • Dazzling in diamonds, 2009

    (Getty)

  • Beyonce looked fierce and fabulous at the 2009 BET Awards

    (WireImage)

  • B donned this nude-colored gown to the 2010 Grammys

    (WireImage)

  • Bold and beautiful at a benefit last year

    (WireImage)

  • At a Lorraine Schwartz event in 2010

    (Getty)

  • A vision in Pucci at The Met Gala this past May

    (Getty)

  • Beyonce performing at the 2011 Glastonbury Music Festival

    (Getty)

  • On GMA this past July

    (Getty)

  • Showing off her baby bump at the 2011 MTV VMAs

    (Getty)

  • Performing in a sequined jacket at the 2011 VMAs

    (Getty)

  • Stepping out in Paris in June 2012

    (FameFlynet photo)

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