Treadmill Runner's Funny Karaoke Session Revs Up Grammy Season

Music has the power to make our bodies do things: dance spontaneously, cry unexpectedly and even sing along intensely. These emotional reactions to songs are the premise to the Recording Academy's new advertising campaign for the 2014 Grammy Awards.
Dubbed "Music Unleashes Us," the ad campaign got into full swing Monday with the launch of four commercials — one of which the academy shared first exclusively with Mashable.
A treadmill runner in the video, above, can't resist singing along to Katy Perry's "Roar" as it blares from his headphones. His fellow gym-goers react to his impromptu karaoke session in various ways. One's confused. A second's amused. Another's annoyed

The commercials arrive on the heels of Friday's televised Grammy nominations special that featured performances from Perry, Lorde, Macklemore and Ryan Lewis, Miguel, Keith Urban, Taylor Swift, Robin, Thicke, T.I. and Earth, Wind and Fire.
The other three video ads, which also show people responding entertainingly to music, are set to music from Eminem, Macklemore and Ryan Lewis as well as Pink and Nate Ruess.
The academy encourages social media users to participate by uploading videos of themselves or other people dancing to music and then tagging them with #MusicUnleashes.
The 56th Grammy Awards will air Jan. 26 on CBS. Katy Perry's "Roar" is nominated for Song of the Year and Best Pop Solo Performance. An SMS-infused lyric video, below, for the song came out in August, followed a month later by its official music video.