about GaGa: not really a fan there, but a 3 song pack is much more appetible than a 4 or 5 songs one, Paparazzi and Born This Way are good party songs, and I don't know Lovegame (yes, I'm a little bit ignorant about pop releases);
about Foreigner: this is a great, unexpected addition. Hot blooded is a rock classic, one of their most famous songs. Urgent... well... cool song, but I already have over 20+ songs to buy between regular DLC and RBN stuff when the PSN store will be back up, so I'll just pass it for now.
Great week, and good upgrades for those who play pro g/b.