US pop duo of couple Amy Heidemann and Nick Noonan, formed after the pair met at Berklee College of Music in Boston.
They are best known for their 2012 hit 'Brokenhearted' which topped the US dance chart and reached No 16 on the main Billboard chart.
Karmin's debut album, 'Inside Out', was released in 2010 but it was 2012's 'Hello' which proved a commercial breakthrough. Fuelled by the success of 'Brokenhearted', 'Hello' reached No 18 on the Billboard album countdown.