Singer Clay Aiken [ tickets ] has filled in a few gaps on his upcoming summer tour, adding several new shows to a trek that supports his most recent studio album, "A Thousand Different Ways."

Aiken has piled new stops in Dallas; Houston; Tulsa, OK; and Syracuse, NY, onto his itinerary. Details for the entire tour, which kicks off July 4 in Dallas, are included below.

The singer made news earlier this month when UN agency UNICEF hailed his role as a traveling Goodwill Ambassador.

"As a former teacher, I recognize that spark of hope and excitement all children possess when given the opportunity to learn," Aiken, who spent five days traveling between Kabul and Bamyan in the central region of Afghanistan, said in the organization's press statement. "Rebuilding schools, training teachers, providing essential supplies and teaching materials are just some of the advances UNICEF and its partners have made to keep that hope flourishing."

While in Afghanistan, Aiken launched a campaign to raise $100,000 in 10 days to support UNICEF's life-saving programs in the war-torn nation, according to news reports. The program topped its quota with $139,778 raised in the first seven days the relief organization said.

"A Thousand Different Ways," Aiken's third studio album, debuted at No. 2 on The Billboard 200 chart after selling 205,000 copies during its first week in stores.

It was Aiken's third consecutive debut inside the Top 5: his first album, "Measure of a Man," entered at No. 1 and "Merry Christmas With Love" debuted at No. 4.

The new album includes covers of Richard Marx's "Right Here Waiting," Paul Young's "Every Time You Go Away" and Mr. Mister's "Broken Wings." Choosing the songs was a collaborative effort between Aiken, Davis and executive producer Jaymes Foster.