Background: Mary Jane Blige (; born January 11, 1971) is an American singer, songwriter, record producer, and actress. She has been honored with numerous accolades and nominations, including winning nine Grammy Awards, and being the recipient of three Golden Globe nominations including one for Best Supporting Actress for her role as Florence Jackson in Mudbound (2017), for which she also became the first woman to receive multiple Academy Award nominations in the same year including for Best Supporting Actress and Best Original Song. She started her career as a backing singer on Uptown Records in 1989.
Context: In January 2011, Hot 97 premiered Blige's teaster track "Someone to Love Me (Naked)" featuring vocals by Lil Wayne. In July 2011, Blige released the song "The Living Proof" as the lead single to the soundtrack of the film The Help. On July 24, VH1 premiered their third Behind the Music that profiled her personal and career life. In August 2011, Blige released her first single off the album, "25/8". Blige's tenth studio album, My Life II... The Journey Continues (Act 1), was released in November 2011. The album, primarily recorded in Los Angeles and New York City, saw Blige looking toward the future while acknowledging the past. "From me to you, My Life II... Our journey together continues in this life," the singer explained. "It's a gift to be able to relate and identify with my fans at all times. This album is a reflection of the times and lives of people all around me." The album feature production from Kanye West and The Underdogs, among others. The second single "Mr. Wrong" featuring Canadian rapper Drake was the most successful single from the album, peaking at number 10 on Billboard's R&B/Hip-Hop Songs chart. The rest of songs released, including lead single "25/8" achieved only moderate success, peaking within the top 40 on R&B/Hip-Hop Songs. The album itself debuted at #5 on the Billboard 200, selling 156,000 copies first week; it was eventually certified Gold in 2012 and has sold 763,000 in the US.  On February 28, 2012, Blige performed "Star Spangled Banner" at the 2012 NBA All-Star Game. Blige appeared as guest mentor on American Idol on March 7, 2012, and performed "Why" on the results show the following night. On September 23, 2012, Blige was a performer at the iHeartRadio Music Festival at the MGM Grand Las Vegas. Blige was featured on the song "Now or Never" from Kendrick Lamar's album Good Kid, M.A.A.D City, released on October 22, 2012.  In early 2013, reports surfaced that Blige was recording a Christmas album. The album, titled, A Mary Christmas was released on October 15, 2013 through Matriarch and Verve Records, her first release with the latter. The album includes collaborations with Barbra Streisand, The Clark Sisters, Marc Anthony and Jessie J. In early December, A Mary Christmas became Blige's 12th top ten album after it rose to #10 in its eight week.  On October 23, 2013, Blige sang the national anthem before Game 1 of the 2013 World Series.
Question: Which performances did she do during this time?. Whats the answer?
2012, Blige performed "Star Spangled Banner" at the 2012 NBA All-Star Game.