Lovato experimented with pop and R&B on her third studio album, Unbroken (2011), and returned to a more pop-friendly sound on her fourth studio album, Demi (2013). The album debuted with 110,000 copies sold in the US, her highest first-week sales in the country. Lovato's soul-influenced fifth and sixth studio albums, Confident (2015) and Tell Me You Love Me (2017), presented more mature lyrical content than previous works. The latter became her first album to be certified platinum by the RIAA, and its lead single, "Sorry Not Sorry", became her highest-charting single in the US, peaking at number six, and was certified 5x platinum in the US. Lovato's 2020 singles "Anyone" and "I Love Me" became her first number-one entries on Billboard's Digital Songs chart. Her collaborations "Échame la Culpa" (2017) with Luis Fonsi and "Solo" (2018) with Clean Bandit were international successes, both reaching number one in 17 countries and each certified platinum or higher in at least ten countries, including Diamond certifications in Brazil and Mexico.