STAGE TUBE: Sneak Peek - Molly Shannon Guest Stars on Tonight's UP ALL NIGHT on NBC

On tonight's episode of UP ALL NIGHT on NBC entitled 'Hiring and Firing', Reagan's (Christina Applegate) inability to fire a less-than-stellar assistant, Nancy (guest star Molly Shannon), leads Ava (Maya Rudolph) to question whether she has lost her edge. Meanwhile, Reagan and Chris (Will Arnett) hope to find a babysitter that will give him some much-needed parental relief. Jennifer Hall also stars.

UP ALL NIGHT created by Emily Spivey (NBC's "Parks and Recreation" and "Saturday Night Live") and executive produced by Lorne Michaels (NBC's "Saturday Night Live" and "30 Rock"), is an irreverent look at modern parenthood.

Christina Applegate ("Samantha Who?") stars as Reagan Brinkley: loving wife, successful career woman, life of the party and, most recently, mom. Determined not to compromise her career or cool reputation to the cliches of motherhood, Reagan adjusts to life with a baby and returns to work with the support of her stay-at-home husband, Chris (Will Arnett, "Arrested Development"). As Reagan and Chris figure out their new life, self-doubt, sleep deprivation and the pressure of today's parenting protocols rattle their confidence. What's more, the endless needs of Reagan's boss, ambitious but vulnerable talk-show host Ava (Maya Rudolph, "Saturday Night Live," "Bridesmaids"), threaten to throw Reagan off balance.

UP ALL NIGHT airs tonight at 8:00 pm on NBC.

To view a clip from tonight's episode, click below!