News Ashlee Simpson Ross Sweetly Wishes Cancer Stricken Dad Joe Simpson Happy Birthday By Emily Krauser 6:40 PM PST, February 19, 2017 This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. 25:57Ashlee Simpson Ross Sweetly Wishes Father Joe Simpson a Happy Bi…12:32'Love Hard’s Heather McMahan on Enjoying Her Success (Exclusive)03:24Watch Adele’s ‘Easy on Me’ Outtakes02:04‘Yellowstone’ Cast Teases Answers to Season 3 Cliffhanger in Sea…03:13Watch Ariana Grande React to Her First Singing Gig02:10'90 Day Fiancé’: Newly Single Natalie Celebrates Her Own Indepen…03:57Kylie Jenner ‘Devastated’ by ASTROWORLD Tragedy14:47‘90 Day Fiancé’: Ariela Breaks Down in Tears During Confrontatio…03:07'Squid Game' Creator Confirms Season 2 Is Happening: Here's Ever…01:30'RHOBH's Dorit Kemsley Home Invasion: New Video Shows Burglars i…04:43‘Adele One Night Only’: Sneak Peek at Oprah Interview, New Perfo…02:51'You' Co-Stars Victoria Pedretti and Dylan Arnold Are Dating in …03:08CMA Awards 2021: Inside Country Music’s Big Night04:18'Red Notice': Dwayne Johnson Reveals the Moment Gal Gadot Became…05:38Will Smith Recalls Being Suicidal After Watching His Father Abus…04:32‘RHOBH’ Cast Reacts to Dorit Kemsley’s Home Invasion and ‘Terrif…14:38Andy Cohen Shares Major ‘Real Housewives’ Updates: OC, Dubai, At…03:31Nick Cannon Reacts to Ex Kim Kardashian's Rumored Romance With P…03:25Adele Gets Emotional as Son Angelo Watches Her Perform Live for … The Simpson family is celebrating the good things in life. Ashlee Simpson Ross took to Instagram on Saturday to wish her dad, Joe Simpson, a very happy 59th birthday. WATCH: Ashlee Simpson Celebrates Son Bronx's Birthday at Disneyland"Happy Birthday Daddy ❤️?? your my sunshine ☀️," Ashlee, 32, captioned a pic of the two goofily embracing as she gives her dad a smooch on the head. "I love you sooooooo very much." View this post on InstagramA post shared by Ashlee Simpson Ross (@ashleesimpsonross)Joe has been battling prostate cancer since last September. In November, his rep told ET that the former manager was recovering from surgery and back to his work as a photographer. He has recently started radiation treatment to battle the cancer, according to Us Weekly.Ashlee and Jessica Simpson's dad was grateful to spend the holidays with his girls just a couple of months ago, sharing fun photos from their festivities, which included sledding."Hangin' at Jessica's for Christmas.... so thankful for my many blessings.... #christmas #christmastree #love," he captioned a photo of his oldest daughter's tree.View this post on InstagramA post shared by Joe Simpson (@joesimpsonphoto) View this post on InstagramA post shared by Joe Simpson (@joesimpsonphoto)WATCH: Evan Ross Shares Sweet Photo of Daughter Jagger Dressed as a ReindeerAfter the birth of Ashlee's daughter, Jagger, in 2015, Joe sat down with ET to talk about his granddaughter, as well as his recent career change. Hear more in the video below.EXCLUSIVE: Joe Simpson Gushes Over Daughter Ashlee's Baby: 'Jagger is Precious!' This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. Related GalleryStar Shots: What's On Instagram and Snapchat?