Kind of a mediocre episode until the performance, which was quite nice and will hopefully silence the people who were complaining about the music video from episode 6. Not much else to say about it unfortunately, there weren't many really notable scenes this time. 7/10 for me.
The Haruhi news is a very pleasant surprise, but I will continue watching K-ON! as well since 1) I am enjoying it and 2) I am an unabashed KyoAni whore.