Which band has more members, Peter Bjorn and John or The Pretty Reckless?
Peter Bjorn and John: Peter Bjorn and John are a Swedish indie pop/rock band, formed in Stockholm in 1999 and named after the first names of the band's members: Peter Morén (vocals, guitar and harmonica), Björn Yttling (bass guitar, keyboards and vocals) and John Eriksson, known in his solo work as Hortlax Cobra (drums, percussion and vocals). The Pretty Reckless: The Pretty Reckless is an American rock band from New York City, formed in 2009. The Pretty Reckless:  The band consists of Taylor Momsen (lead vocals, rhythm guitar), Ben Phillips (lead guitar, backing vocals), Mark Damon (bass) and Jamie Perkins (drums).
The Pretty Reckless