Taylor Swift in Oscar de la Renta | NBC’s “The Ellen DeGeneres Show”

Taylor Swift joined her “Dr. Seuss’ The Lorax” co-star Zac Efron on Tuesday for an interview on “ELLEN” where they serenaded Ellen DeGeneres with a little tune on a pair of guitars.

While Zac rocked leather and denim, the “Mean” singer opted for another feminine floral look — this time by Oscar de la Renta.

Taylor’s light blue short sleeve cotton dress, from Oscar’s Spring/Summer 2012 collection, looked so pretty on her. I especially loved the bold orange-red prints that Taylor complimented with a matching pair of ballet flats.

This was such a cute outfit for a daytime talk show appearance! Once again, Tay left her long blonde locks casually loose.