After posting the longest-running No. 1 of the summer with "California Gurls," Katy Perry is in a prime position to release her sophomore pop album, "Teenage Dream." The hitmaker trifecta of Dr. Luke, Benny Blanco and Max Martin is back at the helm on this guitar-driven title track and next single, which brings the rock punch that made Kelly Clarkson's "Since U Been Gone" and Pink's "So What" global anthems. The lyrics allude to young love in its purest form, as Perry goes from cooing sweet verses ("You think I'm pretty, without any makeup on/You think I'm funny when I tell the punch line wrong") to a no-holds-barred chorus: "I'mma get your heart racing in my skintight jeans/Be your teenage dream tonight." Listeners won't need to take much of a chance on this track, as "Teenage Dream" is the latest surefire hit to emerge from Perry and her collaborators' winning formula.