Yes, thre is an official music video for the song Addicted by Simple Plan. You can find their official video posted on YouTube. The official video was uploaded to YouTube by SimplePlanMusik.
youtube.com
Youtube is my best answer, when you get to youtube, type in super bass official music video and it should pop up!
There isn't a music video for Revenge Is Sweeter (then you ever were)
Youtube.com
You can find it on PARAMORE.NETOr youtube.
Yes. You can find it on YouTube under self inflicted Katy Perry official music video
One can find the music video of the song "Here With Me" by the Killers, via their official Facebook site, as well as on live streaming video sites, such as YouTube or Crackle.
An individual may find the official music video for the song Fireman on Lil Wayne's website. Another place one could search would be YouTube which may also provide further music videos of Lil Wayne.
Youtube is a great website for searching for and watching music videos. Whether the song is old, new, popular, or unpopular, you will be able to find the video on Youtube. If it is Vevo certified, then it is the official video.
As far as i know she hasn't filmed a video for 'Crazier' even though it is an official single from the soundtrack.
You can of course, buy it off iTunes or search it on Google and Youtube.