<P> `` Mercy '' is a song performed by Welsh singer Duffy , released as the second single from her debut studio album , Rockferry ( 2008 ) . Co-written by Duffy and Steve Booker and produced by Booker , it was released worldwide in 2008 to critical acclaim and unprecedented chart success . As Duffy 's first international release , the song is credited with firmly establishing her career and is now considered her signature song . `` Mercy '' received comparisons to Duffy 's previous single , `` Rockferry '' . Critical reviewers of `` Mercy '' noted similarities between the song to releases by Aretha Franklin , Dusty Springfield and The Supremes , as well as contemporaries such as fellow British singer Amy Winehouse . </P>
<P> `` Mercy '' is a song performed by Welsh singer Duffy , released as the second single from her debut studio album , Rockferry ( 2008 ) . Co-written by Duffy and Steve Booker and produced by Booker , it was released worldwide in 2008 to critical acclaim and unprecedented chart success . As Duffy 's first international release , the song is credited with firmly establishing her career and is now considered her signature song . `` Mercy '' received comparisons to Duffy 's previous single , `` Rockferry '' . Critical reviewers of `` Mercy '' noted similarities between the song to releases by Aretha Franklin , Dusty Springfield and The Supremes , as well as contemporaries such as fellow British singer Amy Winehouse . </P>
who sings the song begging you for mercy
who sings the song begging you for mercy
Duffy
Duffy