There is more than one artist named Jeffrey Martin (although only one is listed on MusicBrainz):
1) an American singer-songwriter from Oregon
2) an American singer-songwriter from Nashville

1) Jeffrey Martin from Oregon: (not pictured on last.fm) WWW.JEFFREYMARTINMUSIC.COM
Martin released his first album entitled Gold in the Water in 2009. It earned him a few key shows, on a few lucky nights, where he was heard by some influential promoters. Since then he has shared the stage with some greats such as Sean Hayes, Martyn Joseph, Jeffrey Foucault, David Wilcox, Tracy Grammer, and others. He has toured across the US and played in festivals alongside musicians like Joe Pug, Gregory Alan Isakov, and Anais Mitchell. He won an honorable mention in the American Songwriter magazine in 2011. He performed at the Mountain Stage New Song Contest at the Lincoln Center in New York City. Find more at WWW.JEFFREYMARTINMUSIC.COM

2) Jeffrey Martin from Nashville: (and who is featured in the photos on last.fm)
Jeffrey Martin is a songwriter and performer from Nashville, TN. He is currently living in Chicago and is writing and recording music for his debut EP. He is known for his hard hitting, visceral, and over all honest song writing style. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.