Well I think they covered lots of ground already. Most of their movie don't get this much daytime interviews.
Like Jim was on Jimmy Fallon, Ellen and he was on a Spanish morning show today and he's on "The Real" Friday
JLO was on the Today show and Steve Martin went on Kelly&Michael.
Also they all did a press junkets and Rih, Jim, Steve did GMA.
They should give it a social media push with ads on IG, Twitter&Tumblr tho...
Also while Rihanna might have not done any solo interviews.. they did give her "solo" TV ads that aired during HTGAWM, Scandal, Empire and The Voice which are TV biggest shows.