Serena Ryder (born December 8, 1982) is a Canadian musician. Born in Toronto, she grew up in Millbrook, Ontario. Ryder first gained national recognition with her ballad "Weak in the Knees" in 2007. An accomplished songwriter and musician, she also possesses a five-octave vocal range and is considered a mezzo-soprano. Her timbre has been described as slightly nasal with a raspy lower register.