Listening to a recording will never match seeing a live concert, just as gazing upon a dollar bill pales in comparison to visiting the presidential cloning facility deep inside Mount Rushmore. Experience the power of the real thing with today's Groupon: for $15, you get one 300-level ticket to see Rihanna on Wednesday, June 15, at 7:30 p.m. at the United Center (a $19.75 value, or up to a $29.51 value online, including all ticketing fees). Doors open at 6 p.m. Seating will be assigned on a first-come, first-served basis upon ticket pickup at Will Call.

Grammy-winner Rihanna unleashes her formidable pipes and celebrated songbook as she continues traveling the countryside on her LOUD tour. Vibrant costumes and first-rate production harmoniously augment the singer's chart-topping oeuvre, which includes hits such as "S & M," "Only Girl (In the World)," and "What's My Name?" From the United Center's 300-level seats, concertgoers can marvel at the elaborate set pieces gilding the stage as their eardrums feast like hungry dachshunds in an unmanned pizza parlor. B.o.B and J. Cole add their own vocal talents to the evening's aural enticements, creating a three-pronged attack on musical monotony.