Original sentence: Kat's current best-selling book "High Voltage Tattoo" (published by Harper Collins) has a foreword by Mötley Crüe's Nikki Sixx, whom she dated in 2008, which she acknowledged in an October 2008 interview on KROQ-FM's Kevin and Bean
Edited sentence: Kat's current best-selling book "High Voltage Tattoo" (published by Harper Collins) has a foreword by Mötley Crüe's Nikki Sixx, whom she is currently dating, which she acknowledged in an October 2008 interview on KROQ-FM's Kevin and Bean