Rihanna has only one regret in life - not wearing ''bedazzled'' underwear under her sheer 2014 CFDA awards dress.The 28-year-old singer caused a stir at the 2014 CFDA awards when she donned a sheer Adam Selman dress with nothing but nude pants underneath and she admitted she wanted to ''slice [her] throat'' for not being more daring with her choice of underwear. She told America's Vogue magazine: ''I just liked it better without the lines underneath. ''Could you imagine the CFDA dress with a bra? I would slice my throat. I already wanted to, for wearing a thong that wasn't bedazzled. That's the only regret I have in my life.'' Elsewhere in the interview, the Work hitmaker dismissed speculation she was upset that Beyonce's surprise release of Formation disrupted her own comeback. She said: ''Here's the deal. They just get so excited to feast on something that's negative. Something that's competitive. Something that's, you know, a rivalry. And that's just not what I wake up to. Because I can only do me. And nobody else is going to be able to do that.'' And though the singer has recently been romantically linked with her ex-boyfriend Drake again, she insists she is currently too busy to date, though she has ''hope'' the situation will change. She said: ''My schedule is so crazy right now...It's definitely going to be a challenge when I do decide to pursue a relationship...but I have hope!''..