Back in their younger days, Milky Way and Galaxy were the roller-skating pop singing sensation Milky Way and Galaxy the Girl, known for such hits as ‘Ursa Minor Ursa Yours’, ‘R U Sirius’, and ‘You’re My Great Attractor’ (which became infamous for taking a Best Lyrics award despite consisting mostly of the line ‘more like Shapely Supercluster am I right’). Sadly, their career never recovered from an unfortunate incident involving faulty skate stops and an overwaxed stage, and they retired quietly to Ponyville to become astronomers instead.