<Table> <Tr> <Td> </Td> <Td> "Stronger (What Doesn't Kill You)" A 22 - second sample of "Stronger (What Doesn't Kill You)" by Kelly Clarkson . The song features "rumbling guitars" and "electronic drums". </Td> </Tr> <Tr> <Td_colspan="2"> Problems playing this file? See media help . </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> "Stronger (What Doesn't Kill You)" A 22 - second sample of "Stronger (What Doesn't Kill You)" by Kelly Clarkson . The song features "rumbling guitars" and "electronic drums". </Td> </Tr> <Tr> <Td_colspan="2"> Problems playing this file? See media help . </Td> </Tr> <P> "Stronger" is a dance - pop and electropop song with a length of three minutes and 41 seconds . According to the sheet music published by Hal Leonard Corporation, it is set in a common time and has a moderately fast tempo of 116 beats per minute . Written in the key of A minor, it follows the chord progression Am--F--C-G / B. Clarkson's vocals span two octaves, from G to G . The song begins with a "rumbling guitar" and a "shimmering synth" riff as Clarkson sings the opening line "You know the bed feels warmer / Sleeping here alone ." Jason Lipshutz of Billboard noted that the guitar riff in the verses is reminiscent of Clarkson's "Since U Been Gone" which narrates an anthem of personal reinvention, and dancing . The bridges contain pulsating beats with synth and electric guitar that display some elements of electronic sound . During chorus, the song explodes into an upbeat dance - pop number, complete with guitars and electronic drums as Clarkson sings "What doesn't kill you makes you stronger / Stand a little taller / Doesn't mean I'm lonely when I'm alone ." Jonathan Keefe of Slant felt nobody else could sell the song's "ginormous chorus" better than Clarkson . Lyrically, "Stronger" explores the theme of moving on from an inimical relationship . In an interview, Clarkson remarked that the song doesn't refer to a specific person, stating "I didn't have a bad breakup or anything, I just think life is about relationships so I always write all about these different ones going on in my life . And I don't have a filter, so it's pretty verbatim ." Jason Scott of Blogcritics felt that out of all tracks in Stronger, Clarkson's vocals are best and trendiest in "What Doesn't Kill You (Stronger)". </P>

Who sings what doesn't kill you makes