I'll give anyone who explains the title to me $20*

Opening theme: Hideki Naganama -- Something Jazzy For Your Mind

News theme: Pokemon Diamond/Pearl Route 210

Review theme: Wii Shop Channel theme

Closing Themes:

Pokemon Brilliant Diamond/Shining Pearl Snowpoint City theme remix (source https://www.youtube.com/watch?v=TtXhAn9J51g)

Hideki Naganama -- Get Enuf

*no I won't lol