Sir Nolan has worked with what sibling musical group signed to Republic Nashville in August 2009?
The Band Perry: The Band Perry is an American music group composed of siblings Kimberly Perry (lead vocals, guitar, piano), Reid Perry (bass guitar, background vocals), and Neil Perry (mandolin, drums, accordion, background vocals). The Band Perry:  They signed to Republic Nashville in August 2009 and released their self-titled debut album on October 12, 2010.
i don't know