Can I use a regular mouthwash and a whitening one?

Well I was trying to get my teeth really white for the big event im going to in a couple of weeks and I was wondering if I can use two kinds of mouthwashes? One a whitening mouthwash and the other a mouthwash with alot of benefits? Like, I use Crest Invigorating mouthwash and I like it alot because it fights gingivitus, reduces plaque etc. so it has alot of good benefits and I really like it but I also need to get my teeth white fast so I want to use whitening toothpaste and mouthwash but still want to use the invigorating mouthwash can I use both? if so which should I use first and which should I use second? Thanks!