View an excerpt video of Mamma Mia! currently playing at Novello Theatre in London. Mamma Mia has gone global. Everyone loves Abba. And timeless songs like 'Dancing Queen' and 'Take A Chance On Me' pull in huge numbers of show goers. It's an enchanting tale of love, laughter and friendship. And London's Novello Theatre is bursting at the seams every night as a result. Fantastic!