Luka Sulic and Stjepan Hauser are two Croatian lads who have gone global after posting their two-cello version of Michael Jackson’s Smooth Criminal on YouTube. They also happen, both, to have improbably chiselled jaws and cool hair. Now signed to Sony, they have released a debut album of covers, including Sting’s Fragile, Nirvana’s Smells Like Teen Spirit and Coldplay’s Viva la Vida. Both are classically trained virtuosos of their instrument, who put plenty of verve into these rather neat arrangements. If you like your pop music played by hunky Croatian cellists, this is as good as it gets.