And also if you remember people worked out last time that 699130082.451322 are the same amount of characters as CHRISTINA.BIONIC or GOLDFRAPP.ROCKET
And for the second video we have I.AM.669321018 and 669321018 = the same amount of characters as CHRISTINA or GOLDFRAPP, so I.AM.CHRISTINA or I.AM.GOLDFRAPP
And also if you remember people worked out last time that 699130082.451322 are the same amount of characters as CHRISTINA.BIONIC or GOLDFRAPP.ROCKET
And for the second video we have I.AM.669321018 and 669321018 = the same amount of characters as CHRISTINA or GOLDFRAPP, so I.AM.CHRISTINA or I.AM.GOLDFRAPP
Freaky.
I think it's both of them. It was reported they collaborated on Christina's album.