"Giddy On Up" is the debut single by American stage actress and singer Laura Bell Bundy. Co-written by Bundy, it was released to country music radio in February 2010 as the lead-off single from her debut album Achin' and Shakin', which was released on April 13, 2010. Bundy wrote this song with Jeff Cohen and Mike Shimshack.

Bundy performed the song on the 2010 ACM Awards on April 18, 2010 and on the 2010 CMT Music Awards on June 9, 2010.

"Giddy On Up" is an up-tempo country song, driven by fiddle and banjo with a prominent brass section in the pre-chorus. The song's female narrator confronts her man ("Baby where you been, its half-past ten"), making note of the many signs that suggest he has been cheating on her with another woman ("Smilin' a lot when you look at your phone / There's a change in your tone"). In the bridge, she tells him that he's made a mistake by cheating on her, telling him to "giddy on up, giddy on out."

Upon release, "Giddy On Up" received mixed reviews from critics. Bobby Peacock of Roughstock gave the song a positive review, favoring the song's production and Bundy's vocal phrasing, which he compares to fellow country artists Dolly Parton and Jennifer Nettles. He concluded that while there is "no shortage of songs in this same vein," it is "radio-friendly" and "different enough sound to stand out." Dan Milliken of Country Universe gave the song a B rating, referring to it as "just another cutesy girl-power kiss-off song," but favoring the song's production and vocal performance, concluding that it "has more vision and personality than any of the other crossover attempts by the legion of boring, pretty girls."

Slant Magazine critic Jonathan Keefe also gave the single a mixed-to-positive review, praising the song's "awareness of pop songcraft and structure" and its "inventive production" for drawing favorable comparisons to the work of Big & Rich, Little Big Town, Taylor Swift, and pop producer Mark Ronson, but noting that Bundy "overdoes her vocal performance" and questioning whether the performance is played for sincerity or for camp. Stephen M. Deusner of Engine 145 gave the song a thumbs-down, saying that he considered the song's subject "well-trod" and that the song, overall, "is more about archetypes than real characters, so Bundy’s performance is consequently and fatally broad."

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