I had thought Popjustice was going a bit over the top with its critique of Band Aid 20 (if you accept PJ’s logic then EVERYONE needs to be on the single to fully reap the marginal benefits – if Sam and Mark, why not Nurse With Wound?). But looking at the amazon.co.uk entry you have to say they have a point:

“Customers who bought music by Band Aid 20 also bought music by these artists:

Will Young
Girls Aloud
Ronan Keating
Geri Halliwell
Brian McFadden”

Four out of five of whom aren’t on the record.