The lyrics of the famous Irving Berlin song, Puttin' On The Ritz, begin: "If you're blue, and you don't know where to go to...".

Well, I think I have the answer. Go and see Anton Du Beke and Erin Boag, the Strictly Come Dancing favourites, strutting their stuff in their latest touring show, featuring top melodies from the Great American Songbook.

Slick, stylish, and oozing charm and sophistication, this is strictly ballroom par excellence.

Anton and Erin make it all seem so effortless, each move and extension faultless, the footwork flawless.

Their dancing conjures up the romance of ballroom – the sexed-up style of some of their contemporaries is not for them. They don't need to do that when they can deliver such precision and perfection, capturing the excitement and exhilaration of each dance.

Music is provided by the excellent London Concert Orchestra, with singer Lance Ellington lending his silky vocals to a string of well-known songs, and dancers Ben Campbell, Francine Cornell, Lisa Dent and Tom Goodall bringing a more musical theatre style of dance to their routines.

In an exhibition of outstanding ballroom dancing, it was hard to choose a favourite, but their Viennese Waltz was totally captivating as they swirled in and out of hold – and the tune they danced it to summed up the whole evening: Wunderbar!