The second song is more similar. The production is a near direct copy.
That "Born to Party" song wasn't supposed to be released because of the similairty, but it was featured on The Hills and people really liked it so it went to iTunes. Good track though.
ďIím becoming a little more comfortable in front of the camera. I wasnít used to it before. I was thrown into a new lifestyle and everything I do is kind of filmed or photographed. Iím a private guy. I like to keep to myself. Iím shy, maybe. It gets kind of tricky for me but, Iím beginning to find the fun in it. I donít take myself too seriously so if Iím front of the camera, thatís what youíre going to get, me clowning around."(Bruno Mars)