Maxi-mom glamour: Up All Night star Christina Applegate keeps cool in floor-length dress

She's been super busy since giving birth to baby Grace in late January, and Christina Applegate also has a hit show on her hands. But the 40-year-old television favourite knows how to keep cool when it gets too hot to mention, by donning loose but stunning clothes. Keeping cool: Christina Applegate looked gorgeous in this red and blue maxi dress as she braved the Studio City heat in LA today Keeping cool: Christina Applegate looked gorgeous in this red and blue maxi dress as she braved the Studio City heat in LA today The blonde looked delightful in a vibrant navy blue and bright red maxi-dress as she attended a meeting in Studio City, which is at the sultry of LA's super-hot San Fernando Valley. The star is to get a brother in her show, which focuses on a first time mother trying to juggle a career (aptly enough). Actor Luka Jones is joining the comedy as a series regular this fall. Jones - Best Friends Forever - will play Reagan’s younger brother Scott. The NBC blurb reads: 'He’s a contractor who is great at his job, but ultra laid back and doesn’t have much business sense. He’s a sharp contrast to Applegate’s Reagan, who’s the ultimate planner. Reagan’s husband, Chris (Will Arnett), likes his cool, mellow brother-in-law.' Radiant: New mother Christina certainly doesn't look like she's been Up All Night Radiant: New mother Christina certainly doesn't look like she's been Up All Night Determined: Christina's NBC show comes back in September, and she also has a young child Determined: Christina's NBC show comes back in September, and she also has a young child They also add that :'The recently divorced Sam also has a five-year-old son who’s given free rein to do whatever he wants, which horrifies Reagan, considering the effect it might have on her daughter. ' She's come a long way since People magazine reported in August 2008 that Applegate had been diagnosed with breast cancer. Her rep confirmed the news in a statement: 'Christina Applegate was diagnosed with an early form of breast cancer. Benefiting from early detection through a doctor-ordered MRI, the cancer is not life-threatening. TV favourite: The star has been a hit since her days in sitcom Married with Children TV favourite: The star has been a hit since her days in sitcom Married with Children 'Christina is following the recommended treatment of her doctors and will have a full recovery. No further statement will be issued at this time.' Later that month it was announced the she was cancer free after having undergone a double mastectomy, despite only being diagnosed with cancer in one breast. The actress said when she first was diagnosed: 'I was just shaking and — and then also immediately, I had to go into 'take-care-of-business-mode' which included a change to a more healthy diet.' When she was given the all clear, she said she felt like she gained a new perspective on life. Last year Applegate founded Right Action for Women, a charitable foundation dedicated to breast cancer screening for women, focusing on the type of MRI scan which saved her own life. On July 21, she made the happy announcement that she is expecting her first child with her boyfriend Martyn LeNoble. The couple have been dating since 2008 and got engaged on Valentine's Day of this year. It will be the second marriage for both. Applegate previously married her longtime boyfriend, Jonathan Schaech in a small Palm Springs ceremony in 2001. She went on to file for divorce in 2005, although it wasn't actually finalized for another two years. Exhausted: It's a case of life imitating art as Christina plays a tired single mother in Up All Night Exhausted: It's a case of life imitating art as Christina plays a tired single mother in Up All Night New parents: Christina and Martyn LeNoble look rested at an event in June