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No Warning is a Canadian hardcore punk band from Toronto.
The band was founded in 1998 under the name As We Once Were by singer Ben Cook, guitarist Matt Delong, bass player Christian Wylde and drummer Alan "Yeti" Riches. Jordan Posner joined soon after on second guitar and Riches was replaced by Kon Putkin on drums. As As We Once Were, they released two demos, both in 1998, and contributed an exclusive song to Redstar Records' 1999 Various... plus