Get Your Heart On! is a return to form for the pop-punk quintet and peppered with guest vocals provided by Rivers Cuomo (of Weezer), British songstress Natasha Bedingfield, Alex Gaskarth (of All Time Low) and Canadian rapper K'Naan. "Jet Lag" (featuring Bedingfield) is about being away from your loved ones and "Can't Keep My Hands Off You" (featuring Cuomo) is a fun ditty about being absolutely infatuated with someone, but the album really comes full-circle with "Astronaut," a truly soaring song - something we've never seen from the band before. Fans will be very pleased to hear "You Suck At Love" since the band has been playing it as part of their live set for nearly a year, as well as "This Song Saved My Life," perhaps the first song ever written via Twitter.