There are at least 5 artists sharing the name Silas on Last. fm:
1) House producer from the UK.
2) Breakbeat artist from the US.
3) A video game music remixer from the OverClocked ReMix community.
4) Fusion rock/metal band from the UK.
This Silas (number 4) have pages entitled 'silas uk' and 'Silas band UK' on Last. fm.
5) A folk/jam rock group from Willamette Valley, Oregon, US.