2008–present: The Fame, The Fame Monster and future work Part 3

Gaga performing on The Monster Ball Tour.

On December 11, 2009, she met Queen Elizabeth II and sang the song "Speechless" at The 2009 Royal Variety Performance. The singer was named chief creative officer for a line of imaging products for Polaroid at the Consumer Electronics Show on January 7, 2010, where she commented that she will create fashion, technology and photography products.On January 14, 2010, Gaga had to cancel the Monster Ball concert in West Lafayette, Indiana, due to health concerns. In an interview with Barbara Walters, she dismissed an urban legend, the claim that she is intersexual, and responded to a question on the issue by stating: "At first it was very strange and everyone sorta said, 'That's really quite a story!' But in a sense, I portray myself in a very androgynous way, and I love androgyny."

Gaga received Grammy nominations for Song of the Year, Record of the Year, and Best Dance Recording for her single "Poker Face", winning the last of the three.The Fame itself had been nominated for Album of the Year and won the Grammy Award for Best Electronic/Dance Album.The second single from The Fame Monster was "Telephone", which reached number one on Billboard's Pop songs chart, thus becoming Gaga's and Beyoncé's sixth number one on the chart, tying them with Mariah Carey. The song also peaked the chart in UK. On March 19, 2010, Rob Fusari sued Gaga's production company Mermaid Music LLC, claiming that he was entitled to a 20% share of its earnings. Gaga's lawyer Charles Ortner described the agreement with Fusari as "unlawful" and declined to comment.

In an interview with MTV United Kingdom, Gaga stated that she had begun work on her new studio album. She said that shes "already written the core of it" and that "it's certainly my best work to date." ContactMusic, along with several other news organizations, has reported that Gaga appeared on one of her fan sites, GaGaDaily, that she already wrote the first single for her third studio album. She said, "I wrote it for you because of you, when I was in Liverpool, I wrote the greatest music I've ever written." She also said she had picked that albums title, and that it was going to be revealed on that fan site.

Lady Gaga is set to be one of the headliners of Lollapalooza 2010.