oNEwAY is a name of at least two bands:
1) A romanisation of 원웨이 (aka One Way), an all-male Korean hip-hop / k-pop duo of Peter and Young Sky. They made their television début on 6 Mar 2010, on MBC's "Music Core".
All three are fluent in both English and Korean: Peter grew up in Sydney, Chance in Los Angeles and Young Sky has lived in both cities. Their sound might be considered similar to 2PM.
2) A Kunming, Yunnan, China post-rock / instrumental rock band