Former presidential hopeful Mitt Romney celebrated his 66th birthday on Tuesday. His son, Tagg Romney, tweeted a photo of his smiling father wearing a birthday hat, sitting in front of fluffernutter cupcakes lit with birthday candles.

In a second frame, Romney appears mid-chew.

Last week, Romney joined Tagg's venture capital firm, Solamere Capital, to serve as executive committee chairman.

See the photo below

mitt romney birthday

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  • At A Basketball Game

    Republican presidential candidate and former Massachusetts Gov. Mitt Romney and wife Ann Romney are seen in attendance for the game of of the Boston Celtics against the Atlanta Hawks in Game Four of the Eastern Conference Quarterfinals during the 2012 NBA Playoffs on May 6, 2012 at TD Garden in Boston, Massachusetts. (Photo by Brian Babineau/NBAE via Getty Images)

  • At A Bookstore

  • At A Wendy's

  • At The Beach

    Republican presidential candidate, former Massachusetts Gov. Mitt Romney walks on the beach prior to the start of a touch football game on the beach with members of the Romney campaign staff versus some members of the traveling press corps on October 21, 2012 in Delray Beach, Florida. (Photo by Justin Sullivan/Getty Images)

  • At A Gas Station

    U.S. presidential hopeful Mitt Romney greets an employee as he visits a WaWa gas station in Quakertown, Pennsylvania, June 16, 2012. (EMMANUEL DUNAND/AFP/GettyImages)

  • At A Pizza Shop

    US Republican presidential candidate and former Massachusetts Governor Mitt Romney talks with Marci Miller (L) as he visits a Little Caesars pizza restaurant during a stop between campaign events in Cambridge, Ohio, August 14, 2012. (SAUL LOEB/AFP/GettyImages)

  • At A Baseball Game

    BOSTON - APRIL 11, 2003: Gov. Mitt Romney tries to get a bite in the rain at his seat near the third base line, on what was going to be opening day - until the Red Sox were rained out. (Photo by Michele McDonald/The Boston Globe via Getty Images)

  • At A Toy Store

  • At An Auto Racing Event

  • At A Bakery

  • On A Train

  • At A Boxing Match

    Former Republican presidential candidate and Massachusetts Gov. Mitt Romney and wife Ann Romney sit ringside before Manny Pacquiao takes on Juan Manuel Marquez in their welterweight bout at the MGM Grand Garden Arena on December 8, 2012 in Las Vegas, Nevada. (Photo by Al Bello/Getty Images)

  • In A Car

  • On A Tractor