I Bet is literally the only thing pushing this album, so performing it was a smart choice. It is at least 2 weeks away from peaking on urban radio anyway, so at the very least the promo might help her get another top 5 urban hit from this era.
They really want to get everything out of I Bet at this point. The Joe Jonas remix is on her Vevo. She is also performing with him or atleast the rumours were there. I hope she also performs DLWML additionally throughout this week and the coming weeks.
Is I Bet also doing something at the billboard dance/club charts though? I feel she should have released a full dance remix EP along the R3HAB remix a few weeks ago.
But oh well what's done is done, the performance was great. It is like a hybrid between the T.I. remix, R3HAB and possibly how she performs it at tour (haven't seen video's of I Bet yet)
just a few weeks for mine signed to arrive 
It's definitely reminiscent but they're definitely different enough for it not to be called a copy.