Dress for 8th grade dance?

I was in the mall a while ago and I found a silver/grey dress that was spaghetti straps, and it had a lot of sequins near the chest. I forget where I saw it, but it was either nordstrom's or bloomingdale's or jcpenney or macy's, one of those department stores. I've been looking online but I can't find it! If you can, please find one close to it, or the actual dress, or send me any other dresses you think are cute. Thanks! :D