There are several artists using the name LEMON.

1. LEMON is a UK artist, the alter‑ego of producer, DJ and multi‑instrumentalist Nick Hollywood.

Freshly Squeezed Music. Amongst their first releases was LEMON's second album «With a Twist» (ZESTCD001).

Tracks from LEMON have been licensed to numerous compilations worldwide and can be heard in adverts internationally. LEMON songs also appear on the soundtracks and trailers to many Hollywood movies including Knocked Up, The Heartbreak Kid, License To Wed, Wild Hogs (all in 2007!) and frequently crop up on TV series including several tracks in the hit show Ugly Betty.

http://www.freshlysqueezedmusic.com
http://www.discogs.com/artist/Lemon+(5)

2. LEMON is a Belgian band from Bruges. They started in 1999 and have been compared to Coldplay and Radiohead.

Their first cd ‘Magnetic’ was released in 2003, in the same year they did a small tour, and performed on Werchter.
Their music (notably ‘Stay With Me’) was used for a Flemish television series called ‘Kinderen Van Dewindt’.

The second album ‘Endless Days’ was released in 2008.

3. LEMON was a Finnish band (1969–1974) best known of its Uriah Heep cover Nainen tummissa (Lady in Black).

4. LEMON was also the name of an American 1970's disco/funk band.

5. LEMON is also an Amsterdam‑based rock band of the 90's and 00's, specializing in the Madchester sound.