Here are the bands who've gone orange (later changes to the list will be noted):

1 Vopli Vidopliasova, 2 Okean Elzi, 3 Haidamaky, 4 Borshch, 5 Tartak, 6 Viy, 7 Mandry, 8 Tanok na Maydani Kongo, 9 Mad Heads, 10 Vhid u Zminnomu Vzutti, 11 5nizza.

and here are the individual singers:

1 Ruslana, 2 Nina Matvienko, 3 Oleksandr Ponomariov, 4 Viktor Pavlyk, 5 Anzhelika Rudnytska, 6 Evgeniya Vlasova, 7 Taras Pertynenko, 8 Mykola Gnatuk, 9 Nadiya Chepraha, 10 Natalie Mogilevska (thanks Kirill for telling me)

And to be fair, here are the bands that say they support Yanukovych (but they're not giving free concerts for him):

1 Skryabin (thought I've heard a rumor he's repented), 2 Green Gray