Complex sentence: The Staccatos follow-ups to "Half Past Midnight" did not meet with as much success in Canada, and in the US, the band's singles (released by Capitol and Tower) failed to chart at all.
Split into simpler sentences: The Staccatos follow-ups to "Half Past Midnight" did not meet with as much success in Canada. In the US, the situation was worse--the band's singles (released by Capitol and Tower) failed to chart at all.