Lady Gaga is heading for her third UK No 1 album in another crowded week for frontline releases.

Her newly-issued set Artpop has a lead of 58% over Columbia act Celine Dion's Loved Me Back To Life at No 2 in the latest midweeks, while her Interscope/Polydor colleague Eminem drops 1-3 with The Marshall Mathers LP 2, according to the Official Charts Company.

However, while Artpop should follow her previous studio albums The Fame and Born This Way by topping ...