There is more than one artist with this name, including:
1) Greg Johnson is a New Zealand singer-songwriter from Auckland.
2) Greg Johnson is an American singer-songwriter.
3) Greg Johnson is a British singer-songwriter from Bournemouth.

1) Greg Johnson (born 1968, Auckland) is a New Zealand singer-songwriter of melodic lyric-based pop. He has seen success both as a solo artist and writing for others. Since 2002 he has been resident in the USA.
Over the years, he has toured with Dave Dobbyn, The Wallflowers and The Exponents.
He has written and co-written several songs for Strawpeople, and 2005 collaborated with Russ De salvo and Arnie Roman a song for New Zealand artist Amber Claire.

2) Greg Johnson is an American singer-songwriter who debut solo album is "Choices".

3) Greg Johnson is a British singer-songwriter from Bournemouth. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.