1) Rika Tatsumi - Love and Revolution (Rika Tatsumi)
2) Act Yasukawa - Girl's Fight (Mutant Monster)
3) Hanan's theme
4) W-FIX/RIOT QUEEN - Out of Control (MAN WITH A MISSION)
5) Erin Angel - Bring it All Back (S-Club 7)
Act's isn't current but I heard it for the first time this year. Sakura Hirota's Marvelous theme gets a honourable mention but that more a combination of theme/video/Becky pyro/experience than it just being catchy.