Tesla announced Denholm's appointment weeks after the Financial Times reported that James Murdoch, who also sits on Tesla's board, was the frontrunner.
Musk resigned as Tesla chairman in October under an arrangement with USA regulators to settle fraud charges stemming from a tweet in which he said he planned to take the company private and had financing to do it.
United States authorities sued the entrepreneur for misleading investors and he and Tesla were each fined $20m.
Musk said: "Robyn has extensive experience in both the tech and auto industries, and she has made significant contributions as a Tesla board member over the past four years in helping us become a profitable company".
The electric vehicle company said today in a statement that Denholm will leave Telstra after a six-month notice period with Australia's biggest telecoms company.
The spokeswoman also said Tesla was actively looking for two additional independent directors.
Denholm is now chief financial officer at Australian telecoms operator Telstra Corp Ltd and has been an independent director on Tesla's nine-member board since 2014.
"The fact that he can remain CEO is very important for the company". In the meantime, she'll work closely with Musk. She was appointed as Telstra's CFO in July.
Ms Denholm has served on the Tesla board as an independent director since 2014 and has also worked in Silicon Valley and for companies including Toyota.
Tesla has seen months of turbulence since Musk's infamous tweet.
"I look forward to helping Elon and the Tesla team achieve sustainable profitability and drive long-term shareholder value", she said in the statement. Its stock has fluctuated, and many investors have called for the company to exercise more oversight over its CEO, who has received media attention for his unconventional ways. Musk later tweeted that this was "incorrect".
It's not a surprise that the Nationals would try to make sure Harper didn't hit free agency, but this is still pretty interesting. But no position player has ever earned an average annual value of more than $US27.5 million (Alex Rodriguez and Yoenis Cespedes).
On Sunday, November 4, in Bilbao, Spain , Janet Jackson performed a three-song melody that showed the world that she still has it. At The Disco won Best Alternative , and BTS won Biggest Fans , among others.
Democrats could derail Trump's legislative agenda for the next two years should they win control of the House . If they do so, it will signal a "war-like posture", Trump said. "That's enough, put down the mic", Trump said.
Firefighters and first responders have arrived on scene and the Ventura County Sheriff's Office is working to secure the scene. Authorities said the incident took place at the Borderline Bar & Grill - though the extent of the injuries is not yet known.
Democrats could derail Trump's legislative agenda for the next two years should they win control of the House or the Senate. Despite Democrats hailing an end to one-party dominance at the top of USA politics, Trump spoke of a "tremendous success".
Rick Scott by less than one percentage point, not enough to trigger an automatic recount, with the race still uncalled. Now in another tweet , the President has congratulated Governor Ron DeSantis for being elected Florida Governor.
Davids is from the Ho-Chunk Nation in Wisconsin and has focused her career on the advancement of Native Americans. Democrats Sharice Davids and Deb Haaland will become the first Native American women elected to Congres.
Listen to Newsbeat live at 12:45 and 17:45 every weekday on BBC Radio 1 and 1Xtra - if you miss us you can listen back here. What we love most about this video is that Ariana could have totally redone the whole thing, but chose not to.
The initial DHS request was not accepted early on by the Pentagon and was not forwarded up the chain of command for approval. The Department of Homeland Security disputes that characterization, and the story has been updated with DHS comment.
The Albuquerque Journal includes a logline stating the film " tracks the escape of a kidnapped man and his quest for freedom ". The Journal also reports that the project now has the working title Greenbriar - though that could just be a holding name.
Breaking Bad Is Getting a Feature Film
Filming is about to begin in New Mexico , where the original TV series was set and shot, according to The Albuquerque Journal . The first spinoff was Better Call Saul , a TV show that focuses on how Jimmy McGill became the scummy lawyer Saul Goodman.
Robertson urges Liverpool to rediscover missing spark
"We need to win our games, it's on our shoulders.it's in our hands but we will have to play better than we did tonight". It's tight and it'll go right to the wire. "We're still confident we'll get through but we need to prove that now".
Jeff Sessions resigns as attorney general at Trump's request
Sessions had recused himself from any involvement in the Mueller investigation; his replacement will not have the same obligation. The president said Sessions' chief of staff, Matt Whitaker, would replace him for now, with a permanent replacement coming later.
I would blame weather for lack of goals, says Alvaro Morata
We thought that it's better to him. "For us, the best work for him is that he will play for 45 or 50 minutes against Bate". Can Chelsea pip Manchester City to the Premier League title? For sure, I always want to score because it is good for me.
‘You are a rude, awful person’
A White House staff member steps in to try to take the microphone away from CNN's Jim Acosta as he questions U.S. When Acosta repeated his assertion that the caravan is not "an invasion", Trump became enraged. "Sit down.
Marijuana expands into three more states
State laws allowing recreational use of marijuana have spread across the United States since Colorado voters approved one in 2012. Impose a 10-ounce limit for marijuana kept at residences and require amounts over 2.5 ounces be secured in locked containers.