Need artist's name


Well, once again Allmusic.com is failing me so I’ll try here. Your vast musicical knowledge came up with the answer in less than an hour last time; let’s see how well it works today.
I was at the gym again and their piped in muzac (?) played a song I liked and didn’t know. It was an up-tempo, slightly overproduced (lots of horns, big sound, maybe British?) song with a soul, Motown feel to it (but only just a "feel", I wouldn't classify the song as soul. Sounds like it was produced in the last 10 years) but I’m pretty sure the male singing was white. The chorus repeated the refrain, “I’m a full grown man”.

Mucho Thanks
tgyeti
The song is probably "Mannish Boy," a Muddy Waters song.

http://www.lyricsdownload.com/muddy-waters-mannish-boy-lyrics.html

If it's not Muddy Waters who did the version you heard, put the song title in AllMusic.com and go down the list of others who have covered it.
I did a Google search with the lyrics you posted with the word "lyrics" added.

Here are top 10 results. You can look at the remaining 1,479,990 results yourself.

I AM A FULL GROWN MAN (I WILL LAY IN THE GRASS ALL DAY) lyrics ...Words Lyrics of the song I AM A FULL GROWN MAN (I WILL LAY IN THE GRASS ALL DAY) By PHOSPHORESCENT from the album UNKNOWN printable copy.
www.lyricsandsongs.com/print_song/783784.html - 5k - Cached - Similar pages

Song Lyrics Waters Muddy - Mannish Boy Lyrics & Song Text Archive]I'm a man I'm a full grown man I'm a man I'm a natural born lovers man I'm a man ... 4 30 Am (Apparently They Were Travelling Abroad) by Waters Roger Lyrics ...
lyricstrue.net/bandsongtext/Waters_Muddy/Mannish_Boy.html - 18k - Cached - Similar pages

SALT & BLUES: PHOSPHORESCENT LYRICSi am a full grown man (i will lay in the grass all day) i can fly through these hallways dressed in light though it always it always gets cold ...
www.saltandblues.com/lyrics.htm - 1k - Cached - Similar pages

Lil' Wayne - Grown Man LyricsGrown Man Lyrics by Lil' Wayne. ... I'm gone stand cas I am a GROWN MAN [Verse 2] I try to keep my head up, but I die to keep my bread up ...
www.lyrics007.com/Lil'%20Wayne%20Lyrics/Grown%20Man%20Lyrics.html - 18k - Cached - Similar pages

LIL' WAYNE Lyrics - GROWN MANI'm gone stand cas I am a GROWN MAN [Verse 2] I try to keep my head up, ... See if you can download full albums of Lil' Wayne here for 15c per song ...
www.mp3lyrics.org/l/lil-wayne/grown-man/ - 25k - Cached - Similar pages

Am I Right - Artist Summary Bob"Mannish Boy," Muddy Waters, "In A Few Days, I'll Be A Full-Grown Man," Bob, Aaerni .... New misheard lyrics every day for your handheld PC.
www.amiright.com/artists/bob.shtml - 28k - Cached - Similar pages

Am I Right - Add a Letter To a Song Title -> I"In A Few Days, I'll Beg A Full-Grown Man," Bob originally "In A Few Days, I'll Be A Full-Grown Man" .... New misheard lyrics every day for your handheld PC.
www.amiright.com/names/addletter/i.shtml - 56k - Cached - Similar pages
[ More results from www.amiright.com ]

Cokemachineglow.com : Track ReviewsPhosphorescent: “I Am A Full Grown Man (I Will Lay In the Grass All Day)” ... the vocals are strangled and the lyrics weak, but both sound sweet; ...
www.cokemachineglow.com/songs/120805.html - 34k - Cached - Similar pages

FERGIE - BIG GIRLS DON'T CRY LYRICS!I must take the baby steps 'til I'm full grown, full grown Fairy tales don't always have a happy .... Definately five-star. I am SO getting this on my iPod! ...
www.metrolyrics.com/big-girls-dont-cry-lyrics-fergie.html - 53k - Jun 24, 2007 - Cached - Similar pages

who killed the mixtape? > elbo.ws > Music Blog AggregatorTitle:, I Am a Full Grown Man (I Will Lay in the Grass All Day) .... the album Sound Of Silver {mp3} [BUY] Some truly wonderful lyrics with a great beat? [. ...
elbo.ws/feed/2119/page/1/ - 95k - Cached - Similar pages
The Phosphorescent album is one of the best album to come along in years but I can't imagine it getting played in a gym. They're along the lines of Neutral Milk Hotel only more chilled out and "earthy".