I have been working on this site for a year and traffic has increase but looking for new ideas? Can someone suggest something for me?
It is tough to know what are 'new ideas' to you without some more information such as your url and some details of what you've already been doing.
Overall it looks pretty good. You seem to have a decent handle on your website and content. You may want to use more keyword rich image filenames and image alt tags since celebrity sites can get a ton of traffic from image searches. Other than that, I just recommend to keep building more backlinks on a regular basis. You can always improve some search engine rankings. Try things like forum signatures, blog commenting, directories, article syndication, press releases, social bookmarking, social networking profiles, etc. Build links to both your homepage and to internal pages. You should get in the habit of regularly building links using a variety of strategies.
Well I don't want to go into detail about the link building. That same topic is discussed 10 times a day on this forum. Just do some forum searches for any of those strategies. First read into those strategies, then come back and make a new thread if you have questions about one of those strategies. For your images, you should use descriptive filenames. Ideally the keywords you use for the filename is something that gets some searches. So instead of lady-gaga.jpg you could name that image lady-gaga-photo.jpg and get more search engine traffic to that image. Try the Google keyword tool to pick good image filename keywords: https://adwords.google.com/select/KeywordToolExternal
Celeb blogs can easily get decent traffic from repeat visitors. Make sure you can get your visitors to subscribe to your feed on email or follow you on twitter to get updates about new posts. It's also a niche where getting social media attention is not difficult if you are one of first people to blog about a celebrity rumor.