Tonight Show host Jimmy Fallon and singer-songwriter Justin Timberlake have become late-night TV's dynamic duo, thanks to signature bits like their "History of Rap" medleys. And now the two-man team is using its talents to hawk the upcoming Apple iPhone 6. Two new thirty-second TV ads have been unveiled, both featuring just the performers' voices. The first has the guys humming the opening of Richard Strauss' "Thus Spoke Zarathustra" as they swipe through features of both the iPhone 6 and larger sibling iPhone 6 Plus, while the second shows off the various capabilities of the device's Health app. Check out the videos below.