There is more than one artist called Sonic:
1) Sonic is drum & bass producer Jasper Byrne. Runs his own d&b label Space Recordings, and is co-owner of Science Fiction Records alongside Accidental Heroes comrade Dean Fletcher, also known as Silver.
2) Mid 90's German electronic dance project featuring tracks about and inspired by video game Sonic The Hedgehog. Released one album and two singles in 1996.
3) Apparently, a misspelling of Sonique, so if it's you doing so, fix your tags.