Remove or bump images from Google

Working with a band who is re-branding themselves and wants their top images removed from Google or at least bumped down the page. Everytime they release a new song, people grab the old photos from when they were very young and it does not reflect the current image of the group. Any suggestions or anybody know how to get these removed? Let me know. Thank you in advance

-mediaman

SEO on the new images, or take the old images down (if they are posted on the bands website, facebook page, etc).