aka the i'm indier than thou thread

Just made me curious from the Dizzee Rascal thread where someone said they had only recently heard it, and it made me wonder how many UK number 1's I have heard from this year. Wikipedia says they consist of:

"When You Believe"- Leon Jackson
"Now You're Gone"- Basshunter
"Mercy"- Duffy
"American Boy"- Estelle featuring Kanye West
"4 Minutes"- Madonna featuring Justin Timberlake
"That's Not My Name"- The Ting Tings
"Take a Bow"- Rihanna
"Singin' in the Rain"- Mint Royale
"Viva la Vida"- Coldplay
"Closer"- Ne-Yo
"Dance Wiv Me"- Dizzee Rascal featuring Calvin Harris and Chrome

Of the above, I think I have only heard Madonna (in a McDonalds in Paris, when they had a music channel on) and Mint Royale from the advert the song was on. and maybe I've heard The Ting Tings on their tv advert (I think they have?), but I'm not sure.

It feels so strange being so detached and separated from number 1 after number 1. & yet I don't feel a bit sad.