Atsuko Maeda (Qian Tian Dun Zi , Maeda Atsuko, born July 10, 1991, in Ichikawa, Chiba) is a Japanese singer and actress known for her work in the Japanese idol group AKB48. Maeda was one of the most prominent members in the group, and placed first among all AKB48 and sister group candidates in the group's general 2009 and 2011 elections, and second in the 2010 election. She also appeared on many of its album covers. On March 25, 2012, she announced her graduation from AKB48; it was held on August 27.

On April 23, 2011, Maeda announced that she would make her solo debut with her debut single "Flower", released on June 22. It was met with commercial success in Japan, debuting at number 1 on the Oricon Charts with first week sales of 176,967 copies. The follow-up single "Kimi wa Boku Da", released in June 2012, was Maeda's last solo single while still a member of AKB48. It debuted at number two on the Oricon charts and reached number one on the Billboard Japan Hot 100. On June 15, 2013, at AKB48's handshake event held at Makuhari Messe, AKB48 announced that Maeda would appear as a special guest at the group's summer concert series at the Sapporo Dome on July 31. There], she performed her third single, "Time Machine Nante Iranai" (taimumashinnanteiranai, I don't need a time machine), which was later released on September 18. It was selected to be the theme song for the live-action adaptation of Yamada-kun to 7-nin no Majo (Yamada and the Seven Witches). Maeda described the song as "cheerful and fun" and hoped it would liven up the show. "Time Machine Nante Iranai" eventually peaked at number one on the Oricon Daily charts, and number two on the Oricon Weekly chart. On Billboard's Japan Hot 100, it debuted at number one and stayed there for just the week of September 30. Maeda's 4th single "Seventh Code" was released on March 5, 2014. It was used as the theme song of the movie "Seventh Code" in which Maeda herself starred in. It debuted at number 4 on the Oricon charts and reached number three on the Billboard Japan Hot 100. On December 12, 2015, it was announced that Maeda's first album will be released later the next year. Eventually, the album is set to be released on June 22, 2016.

Using a quote from the above article, answer the following question: What was maeda's solo career like?
It was met with commercial success in Japan,