Singer will play seven dates in October and November
Rapper also says that the Lil' Wayne tour was sober
Sam Lufti wants her to testify in case against her mother
New clip depicts Mayan calendar's end of the world in December 2012
Licensing firm files breach of contract suit against the Spears family
Leaked document reveals details of 'Circus' follow-up
Some lucky fans can own track from tomorrow
Singer confirms she's almost finished new record
Producer Dr Luke speaks about forthcoming record