Stuck on a DJ =(

Hey ladies. I am really stuck on finding a DJ. Music is such an important part of our wedding and I really want to make sure we are making the right decision. I have gone to weddings where Tommy Tunes played and they were awesome..but have gone to a wedding where the music was just horrible. My brother used Long Island Sound and I thought they were good but other than that I don't really have any referrals. Can you please highly recommend a dj for us to look into? I need to book this ASAP!