MTV keeps adding to its VMAs performance lineup, confirming Macklemore & Ryan Lewis and Bruno Mars on Friday.

Macklemore & Lewis, nominated for six awards this year, will perform their gay rights anthem "Same Love." The song, which features Mary Lambert on the album version, is up for Best Video with a Social Message.

Mars is set to debut a new single that night as well, joining Justin Timberlake, Kanye West, Robin Thicke, Katy Perry, Lady Gaga and Miley Cyrus as performers announced so far.

"Same Love" follows Macklemore & Lewis' previous No. 1 hits, "Thrift Shop" and "Can't Hold Us." Despite its powerful message, "Same Love" has stalled just outside the top 10, hanging out at No. 11 for the past few weeks. This performance will likely give it a helpful boost.

The VMAs are set for 9 p.m. on Aug. 25, live from Brooklyn's Barclays Center.